NOBEL PRIZE FOR PHYSICS - PHOTOGRAPHY - Gabriel LIPPMANN (18 - Lot 533

NOBEL PRIZE FOR PHYSICS - PHOTOGRAPHY - Gabriel LIPPMANN (1845-1921, French-Luxembourg physicist, Nobel Prize for Physics in 1908) / Correspondence of 2 signed autograph letters, totalling 6 p in-8, each headed "Faculté de Sciences, Laboratoire des recherches à la Sorbonne", Paris, addressee not identified Guérault, Guéroust?1°) On January 2, 1915, he thanks him for sending his book, which he will read with great interest, not only out of friendship for you, but because the subjects you deal with seem interesting to me, as we have not had the opportunity to discuss any of them amongst ourselves, and I have always appreciated the solidity and sincerity of your reflections; my wife tells me that you have thought of presenting it to the Académie des Sciences, and I will be at your disposal to do so whenever you wish (nb: daughter of Victor Cherbuliez, Laurence Lippmann was a collaborator of her husband and was very much involved in the development of photography) - 2°) On February 16, 1915, he congratulated his friend, "Your book is very interesting, we are no longer used to works that go beyond certain specialties, yours has the main quality of a large-scale book, it makes you think, that's all I have time to tell you for the moment, we'll talk about it if you like; in the meantime, I don't know what could have made you think I'd judge it unfavorably - quite the contrary; I know even less why you imagine that our old and very solid friendship could have diminished, perhaps my long silence is the cause, so I must apologize; you know that in normal times we hardly have the time to see each other as I would like, today it's all over; one or two days after our conversation, I left on a rather painful trip, which I'll tell you about; on my way back I was caught up in my laboratory research on behalf of the public good, and I'm examining my other activities, so that the visit I was going to make to you on my way home has had to be postponed; I'm afraid I won't be able to have the pleasure of making it before next month, but please be assured of my very cordial friendship.