Lot n° 84
Estimation :
4000 - 5000
EUR
Result without fees
Result
: 4 200EUR
Gustave EIFFEL (1832-1923) - Lot 84
Gustave EIFFEL (1832-1923)
17 L.A.S. and 4 L.S., 1885-1905, to Jules JANSSEN; 37 pages, various sizes, mostly in-8, stamps G. Eiffel Constructions Métalliques, Compagnie des Établissements Eiffel or Laboratoire aérodynamique G. Eiffel.
BEAUTIFUL SCIENTIFIC CORRESPONDENCE. June 12, 1885. Before making a communication "on the Nice dome", he asks for "the exact inside diameter of Pulkowa's dome. I believe it is the largest in existence"... January 10 1889. Urgent reminder of his promise to "indicate a certain number of scientists whose names would be inscribed on the Tower"... January 24 1889, thanking him for the list of French scientists which "seems very complete"...
OBSERVATOIRE DU MONT-BLANC. January 4, 1891. He recommends M. IMFELD, "very worthy of the choice you could make of him"... June 12, appointment. July 15. He will be in Chamonix with Imfeld around the 25th: "It is understood that on this date he will make a first ascent alone to finalize the arrangements, and that he will then recruit his staff for the gallery attack". He has contacted Joseph VALLOT, who will also be in Chamonix. "There's no time to lose; nothing could have been done at Mont Blanc until now, and August will be the most favorable time"... September 16th. The death of Dr. JACOTTET has just created a new incident in the progress of our work, which the dreadful weather he has been having almost constantly was already making so difficult. However, IMFELD must take great account of the results already obtained, in circumstances so full of difficulties and even dangers, the digging of 30 m. of gallery, the establishment of the hut which protects it, etc. This is already a great achievement. This is already a major achievement, making it much easier to continue the work and clearing up obscure points. If this work continues through the winter, if the cracks that are easier to observe here than anywhere else don't appear, then the ice at this point is stable and there will be something to do afterwards. - In any case, I have no regrets about giving up my time and paying for it". He assured Joseph VALLOT that he would have every facility "to have access to this gallery to carry out certain experiments [...] it was the least I could do to respond in this way to the services he had rendered my engineer Imfeld and his workers through his observatory-refuge"... November 18. Request for details for a "note for the Civil Engineering Department on the exploration gallery and the head hut"... December 19, concerning an invitation from the Club Alpin... February 26, 1892: "your admirable photograph of the summit of Mont Blanc" gives him great pleasure: "It's really marvellous, and if you look at it carefully, you'll be amazed at the amount of things you discover"...
Beaulieu April 6, 1896. "One year ago on this date, the Conseil de l'ordre de la Légion d'honneur courageously did me justice and refused to associate itself with the judicial and political iniquity of which I was the victim [allusion to the Panama scandal]. I don't want to let this day of April 6th pass without expressing my deep gratitude to all its members, and without personally conveying to you, dear Master, who have been one of my most staunch defenders, the homage of an ineffaceable gratitude"... December 31, 1898. During a visit to the Trappes Meteorological Observatory, he spoke to Mr. TEISSERENC DE BORT "about the construction of his kites, using ultra-light wood which had been supplied to us in Chamonix for the Mont Blanc Tunnel hut. It seems to me that it only had a density of 0.35 to 0.40 - you must know this better than anyone and be able to tell me [...] who to contact to obtain this special wood"... April 11, 1899, arrangements to collect the wood sent from Chamonix... December 5, 1899. Request for further information on his 1889 communication to the Académie, on the origin of groups A and B ("telluric origin?"), and on "the question of the group of oxygen lines? Are they purely telluric or tellurosolar?"... March 5, 1900. Long explanation of the use in his "ouvrage sur la Tour" [Scientific work carried out at the 300-meter tower, 1889-1900] of Janssen's note in the "chapter on telluric lines", and of Alfred CORNU's work: "I had always believed that he had used our electric beam for experiments on the speed of light". He is ready to suspend printing until Janssen has proofread the proofs... November 20, 1902. Admiration for the beautiful language and elevated thinking of Janssen's speech to the five Academies: "Astronomy in particular suggests
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