Ruj/(d Acacltimj <j/' Sciences o/' Paris. 09 



to the fermentation of sugar, which has since been printed. 



MM. Portal and Dumeril made a favourable report on the 

 preparation of artificial anatomy presented by M. Auzoux. — 

 M. Arago communicated a letter from Capt. Duperrey, re- 

 specting his voyage round the world : it contained a list of all 

 the points which he had passed, and of the islands he had 

 discovered ; as well as of the principal observations in natural 

 philosophy he had found occasion to make. 



April 11. — M. Cordier besought the Academy to send 

 some of its members to his dwelling, to examine a moving 

 globe, representing the increasing and decreasing days, and 

 also the eclipses ot the sun and moon : it was determined to 

 request him to give some details viva voce respecting the exa- 

 mination he solicited. — M. J. B. P. Pacchiarotti communi- 

 cated a memoir, in Italian, entitled, " Physico-medical experi- 

 ments on malignant fever." — M. Martin communicated his 

 " Universal Dictionary of Divisions, with four tables serving 

 for demonstration." — MM. Bussy and Lecanu deposited a 

 sealed packet with the Academy. — M. G. St. Hilaire read a 

 memoir, entitled, " Researches on some facts in the organi- 

 zation of the Gavials ; and on the necessity of distinguishing 

 them from the Crocodiles, as a distinct genus." — M. Arago 

 communicated some observi.tions on halos. — Dr. Pastre pre- 

 sented a memoir, entitled " An essay on the connexion be- 

 tween the medicinal properties of plants and the nature of 

 their localities." 



April 18. — M. de Pilaye submitted two works in manuscript 

 to the judgement of the Academy: they were Essays on the 

 Floras of the island of Terra Nova, and Bretagne, respec- 

 tively. — M. de Humboldt communicated some observations 

 made on the meteorite of Juvenas, by M. G. Rose, of Berlin. 

 — M. Magendie, in the name of a committee, read a favour- 

 able report on M. Dupont's collections of animals and anato- 

 mical preparations. — M. Jomard read an extract from a me- 

 moir on the course of the Nile of the Negroes, or Niger, and 

 that of the Nile of Egypt ; with remarks on the elevation and 

 temperature of the place where Dr. Oudeney died, east of the 

 kingdom of Bournou. — M. Cauchy presented a memoir on 

 the analogy between powers and differences, and on the inte- 

 gration of linear equations. — Dr. Duleau commenced reading 

 a memoir containing observations on t!ie development of 

 hearing and speech in a youth born deaf and dumb. 



April 25. — M. Arago presented, in the name of Capt. Du- 

 perrey, part of the manuscripts and drawings relative to that 

 officer's voyjige round the world ; and a committee was ap- 

 pointed 



