386 Royal Academy of Sciences of Paris. 



rendering a trade less insalubrious." — This prize was not adjudged j 

 only one communication was worthy of notice, and the consideration 

 of that was deferred. 



Prize founded by M. de Montyon " to those icho have improved the 

 healing art." — Two prizes were adjudged ; — one of 10,000 francs to 

 MM. Pelletier and Caventou for the discovery of sulphate of quina. — 

 Another, of the same amount, to M. Civiale, as being the first who had 

 practised the breaking of the calculus in the living subject, and who 

 had operated successfully upon many persons. The Academy how- 

 ever gave medals of encouragement, of less value, to several other 

 persons. 



Prize relating to Statistics, founded by M. Montyon. — A gold me- 

 dal was adjudged to M. Brayer of the Department of L'Aisne for <i 

 statistical description of that Department ; and another to M. Cavo- 

 leau, for a work entitled CEnologie Frangaise, containing a statistical 

 account of all the vineyards of France. 



Prizes proposed by the Royal Academy for 1828, 1829, awrf 1830. 



New Grand Prize relating to Natural Sciences. A description, ac- 

 companied with Jigures sufficiently explanatory , of the origin and dis- 

 tribution of the nerves in fishes. — The prize is a gold medal of the value 

 of 3000 fr. The Memoirs to be sent before the 1st of January 1830 

 to the Secretary of the Institute. 



Grand Prize in Natural Sciences. A general and comparative hi- 

 story of the circulation of the blood in the four classes of vertebrated 

 animals, before and after birth, and at different ages. The memoirs to 

 be sent before the 1st of January 1829. — The prize a medal ot the 

 value of 3000 francs. 



Grand Mathematical Prize. To examine the viinutice of the phe- 

 nomena of the resistance of water, by carefully determining by correct 

 experiments the pressures sustained separately by a great number of 

 points conveniently selected, upon the anterior, lateral, and lower parts 

 of a body, when it is exposed to the shock of water in motion, andiohen 

 it moves in the same fluid in a state of rest ; to measure the motion of 

 the water in several points of the undulations which are near the bo- 

 dies ; to construct the curves which are formed by them; to determine 

 the point at which their deviations commence before the body : lastly, to 

 establish if possible, by these experiments, empirical formulce , which are 

 to be afterwards compared ivith all the experiments previously made on 

 the same subject. The Prize is a gold medal of the value of 3000 francs. 

 Memoirs to be sent to the Secretary of the Academy before 1st of Ja- 

 nuary, 1828. 



Grand Mathematical Prize. — The prize relative to the calculation 

 of the perturbations of the elliptical motion of comets not having 

 been adjudged, the Academy proposes the same subject in the follow- 

 ing terms : — It invites the attention of geometers to this theory, in order 

 to give rise to afresh examination of the methods, and to the perfecting 

 of them. It also requires that these methods should be applied to the 

 comet of 1 759 ,• and to one of the two other comets, ivhose periodical re- 

 turn 



