310 Royal Academy of Sciences of Paris. 



a fresh notice relating to the imaginary roots of transcendental equa- 

 tions. — M. Hericart de Thury gave a notice respecting overflowing 

 wells. — M. Cuvier,in the nameof a commission, gave an advantageous 

 account of the labours of M. Reynaud, surgeon of the Chevrette, 

 during a voyage to India. — M. Pouillet read a memoir respecting the 

 measurement of high temperatures in degrees of the air thermometer. 

 — M. Rozet read a geognostic notice respecting some parts of the 

 departments of Ardennes and of Belgium. 



March 16. — Manuscripts: A letter from M. Baudelocque respect- 

 ing the extraction of infants with improved forceps. — Ideas on the 

 formation of the diamond by M. J. Baruffi of Turin. — Description of 

 an apparatus employed by M. Cottereau for the administration of 

 chlorine. — A new method of proving gunpowder, by M. Barr^. — 

 MM. Chevalier and Langlume on trials by means of a siliceous stone. 

 — A new method of curing stammering, by M. Sene d'Usez. — Me- 

 chanism for travelling in the air, by M. Masucci of Rome. — Various 

 letters from MM. Quoy and Gaymard, on the voyage of the Astrolabe. 

 — Letters from MM. Tournal et Marcel de Serres, on the bones dis- 

 covered in the caverns of Bise. — On the application of Taylor's 

 theorem to the solution of numerical equations, by M. Cauchy. — On 

 the relative organic structure of antediluvian animals, those mentioned 

 in history and of the present time. — M. Silvestre, in the name of a 

 commission, gave a favourable account of the experiments made by 

 M. Bonafous of Turin, upon the comparative advantages of the leaves 

 of the wild and grafted mulberry trees. — M. Cuvier, in the name of a 

 commission, made an advantageous report respecting the collections 

 and designs in natural history, recently brought from Egypt by 

 M. Rifaut. 



March 23. — Manuscripts: A letter from M. Berlau on the ne- 

 cessity of re-vaccination. — A notice respecting the lightning conduc- 

 tors put up in la Place de Valencienne by M. Barre, of the Artillery. 

 — On certain oscillatory motions, produced by the ores of the island 

 of Elba. — Extract of a letter from M. Humboldt to M. Arago, on the 

 phaenomena of the magnetic needle. — Description of a new genus of 

 the family Geraniaceae, by M. Cambassides. — A letter from Dr. Lassis, 

 announcing new facts confirmatory of his ideas respecting the epi- 

 demic of Gibraltar. — Some details by Mr. Warden, on part of the 

 N.W. coast of the United States, near the river Colombia. 



The Academy proceeded to the election of a foreign associate. 

 M. Olbers had 39 votes, Mr. Dalton 14, and M. Plana 1. — M. Cauchy 

 reported that M. Duchatel's memoir on the division of an arc into 

 any number of equal parts, was unworthy of any notice. — M. GeoftVoy 

 Saint-Hilaire read the first part of his memoir on the relations be- 

 tween the structure of antediluvian and present animals. 



March 30. — Manuscript communications : A letter from Dr. Lalle- 

 mand of Montpelier, stating that he cured a large rupture of the blad- 

 der by a suture. — Monograph of the amphipodes crustaceae, by M. 

 Milne Edwards. — Memoir on the geological division of territories, by 

 M. Jobert, Sen. — A report was read respecting the powder magazine 

 ofBayonne, which was struck by lightning.— A report by M. Poinsot, 



respecting 



