Royal Academy of Sciences of Paris. 305 



laid on the table a memoir, in manuscript, on the theory of 

 numbers. — A committee reported upon M. Brisson's memoir 

 on analysis, which they thought should be favourably received, 

 on account of the elegance of the method given by the author, 

 and the importance of the objects to which it wa's applicable. 

 — M. Fiesnel read a note relative to the repulsion of heated 

 bodies. — M. Magendie, in the name of a committee, presented 

 the history of a person born deaf and dumb, to whom Dr. De- 

 leau had given the faculties of speech and iiearing by the ca- 

 theterism of the larynx.— M. de Humboldt read a memoir, 

 entitled A sketch of a geognostic view of South America; 

 and he presented another, containing a thorough examination' 

 of the observations which have been made in various coun- 

 tries on the diurnal period of the barometer. 



June 20.— A memoir was read, on the treatment of the liga- 

 ture of some species of aneurism, for which the amputation of 

 the members is commonly resorted to; by M. Dupuytren. 



June 27.— M. Zugenbuhler claimed, by letter, the priority 

 of the ideas stated in Mr. Barry's paper above mentioned, 

 transmitting a copy of a dissertation printed by him six years 



ago, and entitled Disscrtatio de motu sangtiiiiis per venas. 



M. Frizon laid on the table a manuscript respecting the sum- 

 mation of the similar powers of the roots of an equation. — 

 M. Puissant transmitted a memoir on the determination of the 

 figure of the earth by geodesic aJid astronomical measure- 

 ments.— M. Navier made a report on M. Raynalt's memoir 

 respecting a moving power of great force applicable to ma-/' 

 chinery of every description. It appears that the author has 

 made bad choice of his data, and been deceived by some old 

 expermients on the dilatation of the gases.— M. Vauquelin read 

 a memoir on the existence of iodine in the mineral kingdom *. 

 M. Girard read a memoir on the mutual attraction^f two 

 moistened surfaces, placed at sensible distances in the liquid in 

 which they are immersed.— M. Adrien de Jussieu read a me- 

 moir on the group of Rufacece. 



July 4. — Baron Blein transmitted a note on some experi- 

 ments in acoustics, with the four bars of steel with which they 

 had been made.— M.Thenard gave a verbal account of a work 

 by M. Longchamp on the waters of Vichy.— M. Arago an- 

 nounced that Professor Kupfer, of Cazan, j^roposed to make a 

 journey in Siberia, for tlie purpose of investigating the mag- 

 netic phaenomena; and that he would undertake any experx- 

 ments with which he midit be charged by the Academy.— 

 M. Girardf, director of the veterinary college of Alfort, read 

 * See the present Niiinbcr, n. 269. 



t We regret to hear that the fate of the celebrated Bichat lias durinK 

 the present month befallen M. Girard.— Ei/ir. 



Vol. G6. No. 330, Oct. 1825. " Q q a memoir 



