Correspondence of J. Nicklés. 393 
Art. XLVI.—Correspondence of M. Jerome Nickles, dated Paris, 
temple 29th, 1858. 
storie wee Notices. e¥er the records of the same year, appears the 
death in France of two men of the same name, both of the great class of 
unfortunate savertond on victims of their scientific zeal and devotion :— 
one, Louis Freperic Sauvage, the inventor of the screw used in naviga- 
tion; the other, ALexis Savvace, inventor of the method of applying 
steamboats with pure water by continued distillation. Although one in 
name, there was no family relation between them. 
Frederic Sauvage was born iy Botha sur Mer, September 19, 1785. 
He was at first employed in thé department of military engineering. In 
1811, he became naval constructor; and a fact is mentioned of him, that 
attests to his probity in his profession. A French Company en 
to construct steamboats to run between Boulogne and te on. After 
examining the plans, cs rst that reat were faulty, Sauvage made 
some statements that w ot well received. Notwithstanding the great 
remuneration which the 7 aitk promise, he took his discharge from the 
company, unable, he said, to undertake to construct rae that could 
not be navigated without endangering the lives of those a 
ith principles so strict, it was difficult for Sauvage to many and 
in fact, he had soon to give up his profession 
In 1821, he made arrangements at the quarry of Ellingen, for sawing 
and polishing marble by means of a horizontal mill of his own construc- 
tion. About the same time he invented the Physionometer, a machine 
=a 
5 
y two speculators, under the 
name of the Physionotype, became to t them a fortune; but to the inven- 
tor a source of disappointment and ¢' 
In the midst of these disappointments, Sauvage took up the problem 
of the use of the screw in navigation, demonstrated its feasibility by means 
of asmall model, and worked out its dei etre me hd best position for 
trial le. Sa es ears contended mau the indif- 
ne are roe vv nt His propeller, finally, after 
though 
"So 
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oF 
a, 
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3 
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4 
4 
3 
4 
o 
ies first French scfew gia tas An arrangement wha 
been employed different from the os of the inventor, and it "wocked 
_ Poorly; it was however afterward But by this time the patent 
er inventions, due to F. smanivieges are still in use. The first, moe | 
from 1836, is the Reducer, a kind of pantograph for the sculptor, em- 
SECOND SERIES, Vou. XXVI, No. 77-—SEPT., 1858. : 
Sy é 
