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Letter from A. S. Eddington to Sarah Ann Eddington
EDDN/A/4/1 · Item · 11 Mar. 1919
Parte de Papers of Sir Arthur Eddington

Transcript

R.M.S: Anselm
Tuesday, March 11 | 1919

My very dear Mother

We are now approaching Lisbon and expect to arrive soon after daylight tomorrow morning. The weather has been pretty good; it was warmest on Sunday, which was a beautiful sunny day, and one could sit out on deck chairs without an overcoat. Yesterday and today, there was more wind and occasional showers. It has not been very rough, but there was sufficient motion to make a good many of the passengers unhappy. Of our party, Crommelin & Cottingham succumbed for a time, but they both seem much better today.

We all arrived at Euston an hour-and a half before the train started; but it took a good while to deal with our bulky luggage. We were charged 30/– excess, but most of that was for the object-glasses which being labelled “glass” were charged at a higher rate. We got to Liverpool at 3∙45 and then difficulties began. The Hotels were full and there were scarcely any porters at the station. At last we found a porter of a baggage agency, and put all except our handbags in his charge to deliver to the Steamer. Then we set off in a taxi to hunt for a Hotel. After 3 or 4 attempts we got in at quite a comfortable commercial hotel. I think we were probably very lucky. It was a pouring wet night, so we did not go out.

The next day we got down to the dock about 10 a.m. Our luggage was promised for 10∙30 a.m.; but did not arrive. Soon after 11 we had to go on board, because the emigration officer was only there for a short time. He just looked at the passports and did not worry about anything else. We were not very anxious about the luggage because we soon found about a dozen other passengers were in the same plight as ourselves having entrusted their luggage to the same firm. Ultimately about 12∙30 it all turned up, and we went down to lunch, much relieved.

The Anselm is a very nice boat, and seems much roomier than I expected. I should think there are at least sixty first-class passengers on board. Our cabin is nicely placed, a good height above the water, and is very quiet. Davidson & Crommelin are next door. It seems curious to have done with rationing entirely—unlimited sugar, and large slices of meat, puddings with pre-war quantity of raisins & currants in them, new white rolls, and so on.

We left at about 2 p.m. and went slowly through a chain of docks to the Mersey. One of the Directors of the Booth Line was on board at the start and saw us for a few minutes. We saw the lights of Holyhead about 9 p.m. and stopped a few minutes to drop the pilot. Since then we have seen no land whatever, and have had only very vague ideas as to our position; there is still a war-regulation which forbids them letting us know where we are & what our course is.

Davidson & Crommelin had to sit at the Captain’s table, so our party was broken up. It is supposed to be a special favour to be asked to sit there; but as they are too far from the Captain to get to know him, it does not seem much good. There is one other passenger whom I knew through correspondence, Mr. Walkey an amateur astronomer. He is going out for the Bible Society to live on a house-boat on the Amazon travelling up and down the various tributaries. He expects to be out there most of his life.

I have had a few games of chess with Crommelin and also with a Frenchman, have read a bit, and passed the time very comfortably. I am quite glad to be having a long steamer trip again.

With very dear love from
your affectionate son
Stanley

—————

Numbered ‘1st’ at the head. Two passages have been marked off in pencil by a later hand.

Letter from Arthur Schuster to A. S. Eddington
EDDN/A/5/1 · Item · 9 Nov. 1909
Parte de Papers of Sir Arthur Eddington

Transcript

Victoria Park, Manchester
Novr 9. 1909

Dear Mr Eddington,

May I ask you—in confidence—whether you consider yourself definitely fixed to “Astronomy” or whether you would at all consider a return to Physics as possible.—I am not at liberty to go into details but the question arises whether in case a chair of Theoretical Physics were founded here or elsewhere and suitable conditions were offered you would be prepared to accept the chair.—Also in that case it might help matters if you wd let me know what conditions you would consider acceptable.

You may take it for granted that the duties wd leave you plenty of time for private work and that nothing wd prevent you continuing to prosecute the line of research on which you have entered with such success

I remain
Yours sincerely
Arthur Schuster.

Letter from John W. Graham to Sarah Ann Eddington
EDDN/A/1/1 · Item · 3 Jan. [1899]
Parte de Papers of Sir Arthur Eddington

Transcript

Grand Hôtel des Bergues, Genève
3. Jan 1898.

Dear Mrs. Eddington,

I sent you just one bit of my ideas abt. Stanley as soon as he left us. The rest must follow now.

His presence has been a great pleasure to us. You have got a boy mixed of most kindly elements, as perhaps Shakspeare might say {1}. His rapidly and clearly working mind has not in the least spoiled his character. I don’t know when I have had to do with so modest and gentlemanly a boy. It is a testimony to day schools and home training, (not, I am afraid, my favourite theory.)

His youth has, of course, been just a little against his making friends, but has not been fatal to it. In Clayton, & in Wood & Brown he has nice associates; but he seems more contented alone than most boys are.

His work is all that I expected, & more: & I feel altogether that he is “a precious youth” committed to my charge. I can realise to some extent what Margaret would feel like if she were left alone to bring up our own little Richard.

I remain
Your friend sincerely
John W. Graham

—————

The writing-paper is engraved with illustrations of the hotel, etc. The year is wrong, as Eddington did not enter Owen’s College till October 1898 (see his Notebook).

{1} Graham evidently had in mind Antony’s encomium on Brutus at the end of Julius Caesar: ‘His life was gentle, and the elements | So mix’d in him that Nature might stand up | And say to all the world “This was a man!”’

Chapter VIII: Occupation Symbols
EDDN/B/3/1 · Item · July 1943
Parte de Papers of Sir Arthur Eddington

§ 73. Fermi-Dirac particles.
§ 74. Multiple occupation symbols.
§ 75. Wave functions.
§ 76. The wave representation of phase.
§ 77. The cosmical number.
§ 78. Epistemological foundations.
§ 79. The primitive measurement.

Letter from A. S. Eddington to Sarah Ann Eddington
EDDN/A/2/1 · Item · 3 Sept. 1912
Parte de Papers of Sir Arthur Eddington

Transcript

1912 Sept 3. 11.a.m.
R.M.S.P. Arlanza {1}

My very dear Mother,

We are now on our way between Lisbon and Madeira, and are due at the latter about noon tomorrow; after that the long period away from land begins. I did not hear from you at Lisbon, so fear that the mail must have gone before you posted. I hope you got on all right and are having better weather.

We have had glorious weather the whole way so far. Southampton {2} gave us a parting shower and then the sun came out brightly and has never deserted us since. We had a pretty view of the Needles and Isle of Wight and reached Cherbourg about 6 o’clock where we took on a lot of passengers. We sailed again about 10 o’clock. Before breakfast next morning we were passing Ushant and entered the Bay of Biscay. It was quite smooth, though not exactly glassy; very different from last time I crossed it. The day was bright but not hot. The next morning (Sunday) we were across the Bay[,] and passing C. Finisterre and the end of the Pyrenees the coast looked very pretty with the hills (not very high) well wooded and little villages by the shore. It was now very hot but there has always been a fresh wind. We called at Vigo but did not go ashore; however I visited it well with my opera glasses and took some photographs; the town itself is small, primitive, and not very interesting but the Estuary is fine. We go a little way up the river (I dont know its name) and there are some islands at the mouth which make it very pretty. We took on a tremendous crowd of Spanish emigrants here. They are packed close but seem very happy and lively.

I was up early on Monday morning for the sail up the Tagus to Lisbon. The misty morning light made it very delightful. We went ashore after breakfast (Davidson and J. Atkinson {3} did not land) and stayed until 4 o’clock. You hardly realise Lisbon is a capital city; it seems more a sort of market town. It was very interesting looking round[;] we spent most of the time (which passed very quickly) doing the markets and so on. We went round the Cathedral however, which has a fine high dome and saw many interesting things including the mummy of a saint. We lunched off fruit[—]grapes, apricots and figs[,] which were very nice and wonderfully cheap (very nice tasted {4} purple grapes at a penny a pound)[.] We sailed back to the ship in a sailing boat. We spent altogether 2685 reis which sounds ruinous but is about 9/6.

The ship did not sail till about midnight. Today is I think a little cooler and the sea is not so smooth; but our boat is not much disturbed by it. It is a lovely blue sea with brilliant sunshine.

I have a deck-chair up on the observation deck so get plenty of sun and air. I dont read much more than I did in Norway. This boat is just like the Avon {5} so I know my way about well and, as I told you, we have the same captain {6}.

We are at the Captain’s table but he is not coming to meals until we leave Madeira[.] The other occupants are Mr, Mrs & Miss Unwin; Mr. is some man of importance in S. Amer. but we dont know what. Atkinson tells me he (Unwin) is a radical speaker (A. being a Conservative orator). The only other occupant, my neighbour, is Lady Macpherson-Grant {7}. I am afraid she is going to be rather a bore. However we get plenty of fun with Atkinson. Atkinson who is 67 is a wonderful old chap, as hard as nails; he has been everywhere almost and seems to know everybody. He is always bubbling over with mischief. He is a barrister but has given up practising, breeds and runs racehorses, used to play cricket for Yorkshire, has invented a number of mechanical contrivances which have had great success and directs or manages a number of companies. He is a very keen educationalist on the Northampton County Council and was telling me about their scholarships “but . .” he said {8} “we have n’t done like Somerset yet, I always hold up Somerset to them; they got a Senior Wrangler”[.] I had to enlighten him, as he [had] no idea I was a Somerset Scholar {9}.

I had a good long talk with the Chief Officer last night who knew something of Christina. It seems to be a nice place and the climate and weather prospects first rate.

Of course, we eat tremendously, the meals being much like those on the Avon. I have my bath at 7∙30 so get a little exercise before breakfast at 9. Lunch is at 12∙30, tea at 4, and dinner at 7. They have rather more of a gymnasium here than on the Avon; one very good arrangement is an apparatus for rowing, it feels exactly like real rowing.

I shall have to send with this my best wishes for many happy returns of the day; 60 this time isn’t it? I shall have to give a joint birthday and Christmas present when I get back.

Please give my love to Uncle A. Aunt F. and Arthur; I hope you are not in trouble with the floods, but have heard no English news, whatever.

With very dear love to Winnie & yourself from your affectionate son
Stanley

—————

Letter-head of the Royal Mail Steam Packet Company.

{1} ‘R.M.S.P.’ is printed. The Arlanza, a sister-ship of the Titanic, was built in Belfast by Harland & Wolff for the Southampton–River Plate service. She was launched on 23 November 1911 and came into service in April the following year. She was capable of carrying 400 first-class, 230 second-class, and 760 third-class passengers.

{2} The ship left Southampton on Friday, 30 August.

{3} ‘(Assistant)’ has been added below ‘Davidson’ and ‘(Amateur Astron gone with them)’ above Atkinson, all in the same unidentified hand.

{4} A slip for ‘tasting’.

{5} The R.M.S.P. Avon, of 11,073 tons, was built in Belfast by Harland & Wolf in 1907.

{6} Captain Pope.

{7} Either Frances Elizabeth, the widow of Sir George Macpherson-Grant, 3rd Bt, or Mary (d. 1914), the wife of Sir John Macpherson-Grant, 4th Bt.

{8} This word, which is at the end of a line, is followed by superfluous inverted commas.

{9} Eddington won a Somerset County Council Scholarship in 1898. See Douglas, p. 4.

Letter from A. S. Eddington to Sarah Ann Eddington
EDDN/A/3/1 · Item · 5 Aug. 1913
Parte de 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.

Chapter VIII: Double Frames
EDDN/B/1/10 · Item · Aug. 1944
Parte de Papers of Sir Arthur Eddington

§ 79. The EF-frame.
§ 80. Chirality of a double frame.
§ 81. The interchange operator.
§ 82. Duals.
§ 83. The CD-frame.
§ 84. Double-wave vectors.
§ 85. The 136-dimensional phase space.
§ 86. Uranoid and aether.
§ 87. The Riemann-Christoffel tensor.
§ 88. The de Sitter universe.
§ 89. The tensor identities.
§ 90. The contracted Riemann-Christoffel tensor.
§ 91. States and interstates.
§ 92. The recalcitrant terms.

Chapter II: Multiplicity Factors
EDDN/B/2/10 · Item · Dec. 1942–Aug. 1943
Parte de Papers of Sir Arthur Eddington

§ 12. Object-fields.
§ 13. The rigid field convention.
§ 14. Separation of particle and field energy.
§ 15. Application to scale-free systems.
§ 16. Standard carriers.
§ 17. Mass-ratio of the proton and electron.
§ 18. The fine-structure constant.
§ 19. Rigid coordinates.
§ 20. Unsteady states.
§ 21. The inversion of energy.

(Drafted Dec. 1942; revised Aug. 1943.)

Chapter IX: Simple Applications
EDDN/B/1/11 · Item · Aug. 1944
Parte de Papers of Sir Arthur Eddington

§ 93. The metastable states of hydrogen.
§ 94. Neutrium and deuterium.
§ 95. Mass of the neutron.
§ 96. Double intracules.
§ 97. Comparison with field theory.
§ 98. Mass of the deuterium atom.
§ 99. Mass of the helium atom.
§ 100. The separation constant of isobaric doublets.
§ 101. Isotopic spin.
§ 102. Radii of nuclei.
§ 103. The nuclear planoid.
§ 104. Mass of the mesotron.

Chapter X: The Wave Equation
EDDN/B/1/12 · Item · Sept. 1944
Parte de Papers of Sir Arthur Eddington

§ 105. Field momentum.
§ 106. The gradient operator.
§ 107. Isostatic compensation.
§ 108. Wave equation of the hydrogen intracule.
§ 109. Solution of the wave equation.
§ 110. The interchange momentum.
§ 111. The two-frame transformation.
§ 112. Electromagnetic potentials.

Cosmological Applications of the Theory of Quanta
EDDN/B/3/12 · Item · [1938?]
Parte de Papers of Sir Arthur Eddington

§ 1. Relation between quantum theory and relativity theory.
§ 2. The standard of length.
§ 3. The two ways of representing energy.
§ 4. Representation of energy by curvature.
§ 5. Representation of energy by waves.
§ 6. Wave analysis of the uranoid.
§ 7. The specified particles.
§ 8. Determination of m/m0.
§ 9. Degeneracy pressure.
§ 10. The cosmical constants.
§ 11. The relation E/V=3P.
§ 12. The time-periodicity of wave functions.
§ 13. Nuclear physics.

(This appears to be the English original of a paper given by Eddington at Warsaw in 1938 and printed as ‘Applications cosmologiques de la théorie des quanta’ in Les nouvelles théories de la physique (Institut International de Coopération Intellectuelle, Paris, 1939).)