Showing 4241 results

Archivistische beschrijving
EDDN/A/2/8 · Stuk · 13 Oct. 1912
Part of Papers of Sir Arthur Eddington

Transcript

Passa Quatro
1912 Oct 13

My very dear Mother

I almost forgot how far I carried our adventures in my last letter, but I think it was somewhere about Monday last {1}. We had a number of rehearsals on Monday and Tuesday & on Wednesday morning and had got able to do everything quite smoothly. Besides Aguirre and Andrews we had another gentleman M. Seux {2} who lives in the neighbourhood, who was to count seconds for us during totality. Monday was a glorious day, Tuesday good, Wednesday started overcast, and at noon rain began. We regarded this as a very hopeful sign; as hitherto the rainstorms have been short and have cleared the air beautifully. On Thursday morning we were up soon after five-o’clock and went down in heavy rain to load the photographic plate carriers. At eight o’clock we were beginning to get hopeless, but of course went on with the preparations up to the last moment.

About 7∙30 the special train arrived from Rio bringing the President (Marshal Hermes) the Foreign Minister (Dr Lauro Müller) and their wives, the American Ambassador and about thirty other gentlemen. They were received with bands, rockets and crackers—crackers is the regular Brazilian way of demonstrating. Most of the people came and looked round the camp but it was too wet for the President. The American Ambassador sheltered in our shed where our cases are; we like him very much. The rain became heavier as totality drew near; it was not until 5 minutes before totality that the darkness increased noticeably, then it came on very rapidly. It was extremely dark for the time of totality—one could just see one’s watch with difficulty As soon as it was over it grew lighter very quickly.

The owner of the Fazenda, where we were, gave a banquet to the President and his party after the eclipse. Dr Morize, M. Stephanik (leader of the French expedn) and I were invited. M. Stephanik was not able to go. I was next to Morize during the meal, three places away from the President. Fortunately the Secretary to the American embassy was opposite me, so I had someone to talk English to. There were one or two speeches afterwards; but they did not concern us and I had only a very vague notion of what they were about, as they were in Portuguese. After the banquet we were photographed in a group outside the Fazenda in pouring rain—this was the beginning of heaps of newspaper photographs. I have been in eleven different groups. (One photographer caught the Greenwich Expedition at tea (at the camp) I have seen the negative it is very good and amusing.)

The rain continued without stopping all Thursday and until Friday about 4 o’clock. The passage through mud & pools of the Presidential party to the train was very amusing. In the evening we had a feast at this hotel; there were about forty present—our numbers had gradually increased night by night. I had to make a short speech in reply to a toast, and of course thank Dr Morize & compliment him.

On Friday we had lunch at the Fazenda with Sr Hess—the whole of the expeditions with their volunteers. It was very pleasant there, as there were several gentleman friends of his who could speak English well. About 4 o’clock Aguirre[,] Andrews, Davidson, one of Hess’s friends & I went up a hill (in Hess’s property). Quite unexpectedly it cleared up beautifully when we reached the top, and we had a glorious view of sun & clouds on the distant mountains.

Yesterday Saturday we spent the whole day packing and got on well (It had been too wet to do anything before). The sun was very hot in the afternoon. Towards evening there was a most extraordinary sight—the ants began flying. We have two large white ants nests in our field, and these were swarming with the small ants driving away the winged ones. These winged ants were flying off—about 50 a minute to found fresh colonies They are large creatures like dragon-flies. Besides these hundreds of winged garden ants about the size of tiger-moths were flying over the camp; dozens pitched on our canvas huts, and I expect we packed up a great many of them. Just as we were ready to go home a thunderstorm came on. It was a regular tropical deluge and we were kept about 2 hours waiting at the shed The fireflies were very brilliant in spite of the rain and the lightning (though distant) was very vivid. It was really like fairy land (or the last scene in Peter Pan) and quite enjoyable waiting there. We managed to slither home through mud & lakes about 8 o’clock.

We are a small family now. I think we shall not hurry back to Rio but see a little of this neighbourhood. Lee & Worthington are gone, which is a great relief to everybody. We may go to Rio on Wednesday. We sail on Wednesday week—it was impossible to get the baggage down to Rio in time for the earlier boat. {4}

We have a good deal of fun here in spite of everyone being dejected at the result of so much labour. Stephanik & De Souza (Morize’s assistant) are very nice fellows, and Aguirre has been a tremendous help to us, and is a splendid companion here. Atkinson (though he has had an attack of gout) keeps us very lively and is a great favourite everywhere.

The photographs {5} are some of Davidson’s

With very dear love, ever
your affectionate son
Stanley.

The posts here are very irregular I got Winnie’s letter on Tuesday morning and yours on Thursday just after the eclipse. If you see an article in the Times it will be mine—but as the eclipse was a failure they may not print it.

—————

Numbered ‘8’ at the head in pencil.

{1} 7th.

{2} Pierre Seux. See the Report in MNRAS, lxxiii, 386.

{3} Marshal Hermes Rodrigues da Fonseca, President of Brazil from 1910–14.

{4} The last two sentences have been marked with a vertical line in pencil in the margin.

{5} These photographs presumably accompanied the letter, but are no longer with it.

EDDN/A/3/1 · Stuk · 5 Aug. 1913
Part of Papers of Sir Arthur Eddington

Transcript

Savoy-Hotel, Hauptbahnhof, Hamburg
5 Aug. 1913 {1}

My very dear Mother

Dyson and I travelled here together by the night train from Bonn, and arrived here about 7∙30 this (Tuesday) morning. The two conferences overlap by one day, so we miss the last day of the Bonn meetings. I have been enjoying the affair immensely, and had no idea it would be such a jolly and lively time. There were about 100 astronomers there, many with wives, etc; and I got to know most of them. Schwarzschild was staying at our hotel & we saw a good deal of him. The meetings were mainly devoted to business (not papers), and as there was very little to do we had not too much work—in fact it was rather an excuse for a picnic; but one learns a lot by seeing and talking to the different people. The weather has been glorious and very hot every day except Saturday (which was overcast but fine). We had two municipal banquets, viz at Bonn & Cologne—both very enjoyable. At Cologne a most splendid band played during the meal one of the best I have heard; and the Gürzenich, where the meal was, is a beautiful old hall with Gothic roof. Whilst at Cologne we had a good look round the Cathedral and saw the treasure chamber with the skulls of the three Magi. On Sunday we left Bonn before 9 a.m. by electric tram, and had a ten mile walk through the woods of the Siebengebirge ending up at the Drachenfels castle, and returned in a launch by the river. About 30 of us went (the rest going a motor trip) practically all the English Astronomers went the walk, only one American, Schwa[r]zschild, Hertzsprung[,] Jules Baillaud and a number of miscellaneous nationalities. Two ladies Miss Hills & Mrs Hertzsprung (late Miss Kapteyn) went with us. As we had all day we did not have to hurry much; the views were very fine. We had a good deal of amusement—including a race. “Schwarzschild & five mad Englishmen” (the latter including Dyson & myself) got photographed at one of those places where they give you them finished in five minutes, posed in a motor-car and with a wooden donkey—it makes an amusing group. One afternoon Sampson Stratton Hubrecht & I went on {2} the river to Strandbad, a bathing place and had a very enjoyable bathe—it was a very hot afternoon. We have also bathed two or three times in a covered place at Bonn. There was a very nicely arranged garden party at the Observatory at Bonn (Küstner’s place) on Friday.

I got to know two Russian astronomers Backlund & Belopolski who are most delightful men—Backlund in particular is very good company[.] He reminds one a bit of Atkinson, but he is quite a first-rate astronomer. He has often been to England but somehow I have always missed him. The meeting of the Astronomische Gesellschaft here will be larger, less select and probably more serious; I do not think it will be quite so lively, but there are a number of excursions & entertainments planned.12 The Goldener Stern at Bonn was an excellent Hotel[;] this one here is not so good; but they were very slow over serving meals everywhere in Bonn; lunch although, {3} only 3 courses, always took about 2 hours to serve.

With very dear love from
your affectionate son
Stanley.

The cigars here are excellent & very cheap.

—————

The letter has been docketed ‘Bonn 1913 | Hamburg’.

{1} The first two figures of the year are printed.

{2} This is probably the intended word, though, perhaps as the result of an alteration, what is written resembles ‘top’.

{3} The comma ought to precede the word.

EDDN/A/5/3 · Stuk · 21 May 1936
Part of Papers of Sir Arthur Eddington

Transcript

Observatory, Cambridge
21 May 1936

Dr W. M. Smart’s application for the Chair of Regius Professor of Astronomy in the University of Glasgow has my warmest support. He is a man of established reputation in astronomical circles who would fill the office with distinction; and he has proved himself very successful as a lecturer and teacher. He would be much missed from this Observatory and from the University; but promotion to a professorial chair would be a fitting recognition of his work.

Dr Smart has been Chief Assistant in the Observatory and John Couch Adams Astronomer since 1921. There is only one other Assistant. The policy of the Observatory has been to avoid routine undertakings and to develop new methods. Two main lines of work have been developed during his tenure—an improved method of determining photographic proper motions of stars, and measurement of stellar magnitudes with a photo-electric cell. As regards the former it may, I think, be claimed that the Cambridge results set a new standard of accuracy for large series of proper motions. Photo-electric work is still confined to two or three observatories (Cambridge being the only British one). After a long struggle with pioneer difficulties the work is now proceeding with great success, and astonishing accuracy is obtained. A large share of the credit for these results is due to Dr Smart.

On the theoretical side his earlier work was in celestial mechanics. But in connection with the practical work above-mentioned his more recent interests have {1} been mainly in proper motions and other branches of stellar statistics, to which he is one of the most active contributors. He is a member of the Commission of the International Astronomical Union on Stellar Parallaxes and Proper Motions.

His teaching work covers elementary lectures on astronomy, advanced lectures on celestial mechanics and on stellar motions and a practical class at the observatory. Judging from the response of the students he is a stimulating lecturer. He normally supervises one or two research students.

An important part of his experience is his work as Secretary of the Royal Astronomical Society during the last five years. This brings him into touch with astronomers in all parts of the world, so that he is in full contact with all modern developments. It is perhaps not irrelevant to mention that he is Treasurer of the Royal Astronomical Society Dining Club—an office (of which the duties are by no means confined to the care of money) which is a tribute to his popularity with his colleagues.

To sum up:—He has shown himself able to make the most of the resources of a small observatory; he is well-known and esteemed internationally; he is successful with students; and is well used to administrative activity.

—————

The various cancelled words and passages in this letter have not been recorded, except for the mistaken deletion noted below.

{1} Struck through by mistake.

FRAZ/18/101 · Stuk · 2 Aug. 1927
Part of Papers of Sir James Frazer

Bateman's, Burwash, Sussex - Her letters haven't reached him, hasn't stayed at the Meurice Hotel for years; the booklet is an improvement on the yellow 'volumette'; wishes they could be at home to receive them and François Ceccaldi later in the month.

Letter from George Airy
Add. MS a/200/3 · Stuk · 10 Aug. 1826
Part of Additional Manuscripts a

Orleans - GA and his students are settled in Orleans and 'in as satisfactory a state of stable equilibrium as can be expected'. If his paper in the Philosophical Transactions has been published could WW send him 70 copies. Could WW tell [Henry] Kater 'that I have investigated a theory of the pendulum...as he suggested to me: and that the interval to reappearance does not follow so simple a law as he seemed to imagine?' And if he sees Young, that further to his letter addressed to GA in the Quarterly Journal, 'I get a different result? The result however consolidates his influence. The problem is, to find the form of a thin revolving fluid surrounding a nucleus'.

Letter from George Airy
Add. MS a/200/5 · Stuk · 27 June 1827
Part of Additional Manuscripts a

Keswick - If WW is in Cambridge could he correct the proofs to his paper on Trigonometry for the Encyclopaedia Metropolitana: 'I have just got a letter from [Edward] Smedley who is in an awful fright about it...If you take this upon you, would it be worth the trouble to say so to Smedley? he would then send proofs directly'.

Letter from George Airy
Add. MS a/200/6 · Stuk · 2 July 1827
Part of Additional Manuscripts a

Keswick - GA has just received a letter from Thomas Atkinson of Ainstable 'with a certificate from Hudson, which I transmit to you as being (I believe) Hudson's successor' [concerning TA's entry into Trinity College?].

Letter from George Airy
Add. MS a/200/7 · Stuk · 2 Aug. 1827
Part of Additional Manuscripts a

Trinity College Cambridge - GA agrees with WW that his article on eye pieces should be printed immediately. If WW can arrange this, could he pass on the address of the printers and engraver. He has received the latest number of the Philosophical Journal which contains two letters by James Ivory about GA: 'I wish the man would not torment me by writing letters to me; I am amused by his idea that I have fallen into error from deference to high authorities; I never expected this accusation'.

Letter from George Airy
Add. MS a/200/10 · Stuk · 23 May 1831
Part of Additional Manuscripts a

Observatory - There is not a word about undulations in the papers by William Herschel on Newton's rings, in the Philosophical Transactions for 1807 and 1809 respectively: 'I have been observing the following curious phenomenon. If Newton's rings be produced by two glasses, however they be viewed the central spot is black. But if a glass be placed on metal, and viewed with polarised light (polarised to plane of reflection) then up to the polarising angle the central spot is black, and instantly beyond that it is white. This I anticipated from Fresnel's [experiments]: it is confirmatory of them, and defies emissions'.

Letter from George Airy
Add. MS a/200/16 · Stuk · 6 Feb. 1832
Part of Additional Manuscripts a

Observatory - GA gives a description of his observations of light polarised through glass and a diamond: 'At the first angle of incidence where this takes place (viz. the polarising angle of the glass) the rings go out, evanesce, and disappear: and on increasing the angle they appear in as good proportions at the first instant when visible as when tolerably bright - the white center having the same proportion to the 1st ring did. Of this I am quite certain, having looked carefully. But at the second angle (viz. the polarising angle of the diamond), where the white-centered rings change into black-centered, there is no such thing; the rings do not vanish at all though they become faint; but the first black ring contracts, squeezes out the white center, and itself becomes the black center. This also I have examined carefully. The same thing takes place when, at an angle between the polarizing angles, the tourmaline or prism is turned round'. Amongst other things this proves that the 'diamond does not polarise perfectly at any angle'. Vibrations in the plane of incidence change from + to - on passing through the angle where the polarisation is nearest to perfection. This is 'not by becoming =0 (as certainly they do in glass & all things that polarise perfectly) but by an alteration of the plane.'

Letter from George Airy
Add. MS a/200/20 · Stuk · 18 Oct. 1837
Part of Additional Manuscripts a

Royal Observatory Greenwich - Gives an account of the difficulties involved in constructing a self-registering machine to measure terrestrial magnetism: 'There is only one way in which I can conceive the possibility of such a machine, namely by making the magnet carry a point, and constructing [a] mechanism which should lift the paper up to the point to receive a dot and then withdraw the paper that the magnet might quietly make up its mind as to the position that it would take for the next dot: this to be repeated as often as necessary, say every minute. Taking into account the horizontal oscillation, the up-and-down-bobbing &c of the magnet, which may be checked, I think this may be mechanically possible: but what shall the dot be?' - there are problems with the different possible inks. Is puzzled by David Brewster's latest work - 'it amounts to this, that light from different parts of the spectra can interfere. This is quite opposed to all analogy'.

Letter from George Airy
Add. MS a/200/23 · Stuk · 4 May 1838
Part of Additional Manuscripts a

Royal Observatory Greenwich - GA sends WW two papers including his piece on Cambridge Planetary errors. Main has been trying to correct the elements of Venus from them, but the errors come out so oddly as to make GA suspect that there is some error of theory.

Letter from George Airy
Add. MS a/200/28 · Stuk · 25 Feb. 1840
Part of Additional Manuscripts a

Royal Greenwich Observatory - GA's paper 'On a New Construction of the Going Fusee, Adapted in the Clock-Work of the Northumberland Telescope' is ready, and he will be reading it on Monday evening at the Philosophical Society.

Letter from George Airy
Add. MS a/200/29 · Stuk · 14 Apr. 1840
Part of Additional Manuscripts a

Royal Observatory Greenwich - Gives his comments regarding WW's paper on the history of optics and light in general [for his The Philosophy of the Inductive Sciences, Founded Upon their History?]: 'There is one fault in the general arrangement, which I do not see how to remove - namely, that the phenomena and explanations of fringes, gratings, &c, did precede in history and do precede in mental comprehension those relating to dipolarisation. But the things are very much interlaced all through'.

Letter from George Airy
Add. MS a/200/31 · Stuk · 3 Dec. 1840
Part of Additional Manuscripts a

Royal Observatory Greenwich - GA has been reading WW's work on tides 'with great pleasure and profit'. He gives an outline of queries he finds between various collected observations - especially around the coast of Britain and parts of Europe - and theory.

Letter from George Airy
Add. MS a/200/34 · Stuk · 12 Dec. 1840
Part of Additional Manuscripts a

Royal Observatory Greenwich - Could WW send him 'bound or unbound' his copy of La Lande's 'Traite du Flux et Reflux de la Mes'.

Letter from George Airy
Add. MS a/200/35 · Stuk · 21 Jan. 1841
Part of Additional Manuscripts a

Flamsteed House, Greenwich - Some time ago GA asked for WW's opinion about republishing his tracts [see GA to WW, 10 October 1839]. GA then wrote to Deighton [book publisher] - 'they say that the book sold very slowly and they do not like to publish again on their own risk; most certainly I shall not do on mine'. Has WW any suggestions on making it 'readable' or know of any young man who might take up the thing? - 'a treatise on Optics ought to exist in the world'. GA has not done much work on tides recently. The gale of wind of January 2 and the following morning 'produced a most marvellous effect on the succeeding tide in the Thames. He has received Bunt's [Thomas G. Bunt] Bristol observations taken from the self registering tide gages: 'It is a great pity that he does not go to low water; and also that there is not an infinity of tide gages and gages symmetrically distributed over the coasts and seas'. They should try and get the observations from Brest. Can WW get the readings from the wind mometers in Cambridge from January 1 to January 4. GA wants to find the course of the wind in connexion with the tide.

Letter from George Airy
Add. MS a/200/43 · Stuk · 27 Mar. 1842
Part of Additional Manuscripts a

Royal Observatory Greenwich - GA can supply WW with absolutely no information concerning the Oxford candidates, although he did briefly meet Walker when he came to view an Anemometer: 'I do not think that either of them is known out of Oxford'.

Letter from George Airy
Add. MS a/200/46 · Stuk · 11 Nov. 1842
Part of Additional Manuscripts a

Royal Observatory Greenwich - GA returns Emy's [A.R. Emy, Du Movement des Ondes et des Travaux Hydrauliques Maritimes, 1831] and Brémontier's treatises on waves and sea-works: 'I have not found much in them that suited my purpose, but they are curious as shewing the efforts which hard-headed men have made, without adequate mathematics, to understand a subject which (as I am more and more convinced by increased reading) cannot be touched at all without a beginning of good mathematics, although the advance which the best mathematics can make is small'. Could WW help GA with 'one of my carnal wants', and remind Mr Clayton of GA's request for a supply of strong and mild ale.

Letter from George Airy
Add. MS a/200/50 · Stuk · 6 Mar. 1843
Part of Additional Manuscripts a

Royal Observatory Greenwich - Christie has sent him Belcher's observations at Tahiti: 'The solar tide there from whatever cause, is almost exactly equal to the lunar tide (April & May 1840), & that at quadratures the tide disappears'. GA gives his opinion of WW's distinction between an unlimited canal and a re-entering canal: 'In the formation of the differential equations there is no difference whatever (the laws of fluids, as regards transmission of pressure and the effect of pressure and external force on motion, applying in both cases to every point of the fluid: and this being all that the differential equations express). In the solution of the differential equations there is no difference except this - that, in the nature of the thing, it is impossible to permit solutions in the reentering canal which are not periodical in the completion of the circuit of the canal. There is however usually no temptation to introduce such, because the expression for the forces (on which the distinctive function in the solution must depend) are necessarily periodic in the completion of the circuit'. GA outlines some of the complications involved with the distinctive function (and arbitrary function) and the type of canal.

Letter from George Airy
Add. MS a/200/52 · Stuk · 27 May 1843
Part of Additional Manuscripts a

Royal Observatory Greenwich - GA invites WW to dine at 'our visitation Dinner on Saturday June 3 at the Crown & Sceptre'. He also sends copies of papers on the London, Southampton and Norwich tides: 'The great difference in the general phenomena of the Southampton and Norwich tides, and the small difference in the mathematical formulae which represent them, appear to me very remarkable. I cannot at present explain them'. He has not received all his Irish tide observations: 'Till I have received all, I cannot set the reductions regularly a-going, because for certain matters all are to be combined. But I can see, in the tables already drawn out, some curious things'.

Letter from George Airy
Add. MS a/200/55 · Stuk · 2 Nov. 1844
Part of Additional Manuscripts a

Royal Observatory Greenwich - GA just missed WW at York. He has since been with Richarda to Kingstown in Dublin on the first stage of the chronometric project to Valentia: 'The chronometers had already been in oscillation some time, Sheepshanks [Richard Sheepshanks] doing the Astronomical part at Kingstown. For the transmission of the chronometers, I had had to establish a wonderful system of boxes screwed upon railway carriages and in steamboat cabins, all which boxes could be opened by the same keys; and agents were appointed to transfer the chronometers at the proper places'. GA has marked out all that he intends doing with regard to the Irish tides - 'I have analysed every one of my 1300 tides' and he gives an overview of some of the more 'curious' conclusions he has drawn.

Letter from George Airy
Add. MS a/200/61 · Stuk · 5 Oct. 1845
Part of Additional Manuscripts a

Flamsteed House, Greenwich - GA has not had much time to remark on WW's "Education" sheets for a few days' [Of a Liberal Education in General, and with Particular Reference to the Leading Studies of the University of Cambridge, 1845]: 'First of all - I am very glad that there will be a book on this subject... I have practically felt the want of an authoritative treatise of this kind for reference and for ground of discussion'. GA gives his 'assent entirely to the general spirit' of it and most of the details he has seen: 'I assent most completely to the tenor of your remarks on the mind-destroying effect of analytical process (excepting with a few persons among whom I class myself who have very severely disciplined themselves in the examination of the evidence of every individual step). - But I do not think that you give sufficient attention to the magnitude of the step made, to the vastness of the powers acquired, by the mere perception that symbols may be used for numbers - both in treating unknown numbers as if they were known - and in treating known numbers by general symbols. It is like the step in intellect from childhood to manhood. Although as regards the discipline of mental habit it is greatly inferior to geometrical progress, yet as regards the evocation of an unperceived power of the mind it is greatly inferior'. GA thinks WW 'should slightly limit the repudiating part in your laudatory mention of differential calculus page 36, because I think that it may be made an admirable exercise in severity of logic - at the same time acknowledging that it never will be made so by ordinary private tutors'.

Letter from George Airy
Add. MS a/200/65 · Stuk · 14 May 1846
Part of Additional Manuscripts a

Royal Observatory Greenwich - GA has written a paper about his left eye and wants to know whether it is too late for this years meeting of the Cambridge Philosophical Society - 'if it is in time, would you put it in train'.

Letter from George Airy
Add. MS a/200/66 · Stuk · 26 Dec. 1846
Part of Additional Manuscripts a

Flamsteed House, Greenwich - The medical attendant has announced that Hilda Airy is now out of danger. Has WW received the description of Pulkowa [Pulkowa Observatory]? The speeches at the commemoration did not come up to GA's expectation: 'there was no sufficient acknowledgement of or allusion to the effect of university education on the habits of the mind: - which in my opinion makes the great difference between a Cambridge man and another'.

Letter from George Airy
Add. MS a/200/68 · Stuk · 14 Oct. 1847
Part of Additional Manuscripts a

Royal Observatory Greenwich - GA has been at home for three weeks reducing accumulated business, and helping to arrange an expedition for the observation of the eclipse: 'Never was any ambitious man more unfortunate. The circumstances were these. It was just doubtful whether the eclipse would or would not be annular at Greenwich. So I selected four stations to the north and three to the south, and determined by observations of these to find precisely where the eclipse was just circular. I had a micrometer 20 miles long to measure 12"... But all in vain. Only at one was the sun seen 5 minutes and at a useless time'. GA was delighted with the Pulkowa Observatory in Russia: 'It certainly is the best in the world, not simply in building and furniture but also in methods of observing. The former, however, are parts of the latter: for every instrument and every part of the building have been planned to the utmost details with reference to a prearranged plan of observation. A single observation at Pulkowa is undoubtedly better than a single observation anywhere else. The observatory is best known for its equatorial instruments, and these in my opinion are its weakest part'.

Letter from George Airy
Add. MS a/200/70 · Stuk · 4 Nov. 1847
Part of Additional Manuscripts a

Royal Observatory Greenwich -GA does 'not fully understand the case of the Australian diurnal tides. I do not see the difficulty of an inequality both in high and in low water'. WW is not to suppose that he is satisfied with the Irish tides beyond the empirical laws: 'The mechanics of a sea are almost desperate. I could not satisfy myself about the facts on the eastern side of the Irish channel, and therefore I inferred from those on the western side as if the evidence on that side applied to the whole'. GA wishes WW would try his 'translatorial hand on Schiller's Graf von Kabsburg'.