Pièce 85 - Letter from John William Lubbock

St James's Place - Thanks WW for his letter 'which is a complete answer to my question'. JWL shows how he obtains a quadratic for the distance of the comet from the earth, and through which 'the necessity is entirely done away with of having recourse to repeated trials'. JWL likes WW's proposed plan in his Dynamics ['An Introduction to Dynamics Containing the Laws of Motion and the First Three Sections of the Principia', 1832] 'but think that it would be very desirable to refer to Clairant and D'Almebert the original authors and discoverers as I believe of by far the greatest part of the Mec. Celeste. Laplace as it seems to me did little more than employ their methods taking in terms which they omitted'.