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Updated: June 10, 2025
This had been the history of other great discoveries; and this will probably be the history of most great discoveries for all time. But in this case the discoverer lived to see his theory accepted by practically all the great minds of his time. Delambre is authority for the following estimate of Newton by Lagrange.
The central peak is not prominent, but close under it on the E. is a deep fissure, extending from near the centre, and dying out before it reaches the S. border. At the foot of the N.E. glacis there are traces of a ring with low walls. THEON, SEN. A brilliant little ring-plain, E.N.E. of Delambre, 11 miles in diameter, and of great depth, with a regular and perfectly unbroken wall.
After Sir William Herschel discovered Uranus, in 1781, it was found that astronomers had observed it on many previous occasions, mistaking it for a fixed star of the sixth or seventh magnitude. Altogether, nineteen observations of Uranus's position, from the time of Flamsteed, in 1690, had been recorded. In 1790 Delambre, using all these observations, prepared tables for computing its position.
The first two volumes of his Researches on the Systems of the World, published in 1754, are largely devoted to mathematical and astronomical problems, many of them of little importance now, but of great interest to astronomers at that time. More fortunate in birth as also in his educational advantages, Delambre as a youth began his studies under the celebrated poet Delille.
From Delambre we proceeded to the Montebello Islands, principally in order to set at rest two points of great interest, namely, the position of Ritchie's Reef, and of the long lost Tryal Rocks. On the 31st, in the afternoon, we anchored in 6 fathoms on the eastern side of Tremouille Island, a cliffy islet off the south-east end of which bore South 42 degrees East two miles.
Division General Mensier, Chairman; Division General Delambre, Inspector General of the Permanent Works of Coast Defence, Member of the Technical Committee of the Engineering Corps; Colonel Laussedat, Director of the Conservatoire des Arts et Metiers; Sarrau, Member of the Institute, Professor of Mechanical Engineering at the Polytechnic School; Leaute, Member of the Institute, Professor of Mechanical Engineering at the Polytechnique School.
I availed myself of the clearness of the nights, to observe at the plantation of Tuy two emersions of the first and third satellites of Jupiter. These two observations gave, according to the tables of Delambre, longitude 4 hours 39 minutes 14 seconds; and by the chronometer I found 4 hours 39 minutes 10 seconds.
I warn them, with a knowledge of the case, that gratitude will almost always be found wanting. The elected academician, whose merits you have sometimes exalted beyond measure, pretends that you have done no more than justice to him; that you have only fulfilled a duty, and that he therefore owes you no thanks. Delambre died the 19th August, 1822.
Miss Nickall ran away home at once. Miss Thompkins was left to deliver Miss Ingate and Audrey at Nick's studio, which, being in the Rue Delambre, was not far away. And not the shedding of the kimono and the re-assumption of European attire could affect Audrey's spirits.
He was one who might be expected to find the proverbial "needle in a haystack," but unfortunately the needle was not always there. Delambre says, "Ardent, restless, burning to distinguish himself by his discoveries he attempted everything, and having once obtained a glimpse of one, no labour was too hard for him in following or verifying it.
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