Royal Academy of Sciences of Paris, 143 



Aug. 27. — The Academy received a memoir from M. Madelaine 

 On steam engines. — M. Chevreul gave a very unfavourable account 

 of a new process, proposed by M. Ratieuville, for dyeing wool of a 

 blue colour. — The following papers were also read : Researches on 

 the determination of the series which represent the functions given 

 in one part only of their extent, by M. Brisson ; A memoir on 

 the dyeing of woollen with prussian blue, by M. Raymond ; A me- 

 moir on the formation of sulphuric aether, by MM. Dumas and 

 Boullay ; Researches on the human ovum, by M. Velpeau. — 

 M. Frederic Cuvier gave a favourable verbal account of the Baron 

 Gerando's work On the education of the deaf and dumb. 



Sept. 3. — The Minister of the Interior transmitted the ordonnance 

 of the King, by which the nomination of Dr. Young was confirmed. 

 — -M. Deygalieres sent two Observations on scrofulous diseases, 

 cured according to the principles of his new method. — M. Tournal, 

 junior, of Narbonne, announced the discovery of caverns containing 

 fossil bones, near that city. — M. Lalanne presented an instrument 

 which he names secateur per spectif. — Mr. Perkins read a memoir On 

 new high-pressure machines. — M. Dumeril gave an account of the 

 researches of M. Velpeau on the human ovum. — M. Chevreul,. in 

 the name of the Commission, made a favourable report respecting 

 the memoirs of M. Serullas. — M. Blainville began the reading of a 

 report on the work of M. Jacobson On the reproduction of bivalves. 

 — M.Parseval presented a memoir On the integration of linear equa- 

 tions. — M. Cauchy read a memoir On the determination of the series 

 of Lagrange, and the conditions of convergence. 



Sept. 10. — M. Rambur, a physician of the department of Inare 

 and Loire, sent a description of a monstrous child which had two 

 bodies and only one head. — M. Blainville made a verbal communi- 

 cation respecting the organization of a species of Terebratula.— 

 M. Navier read the report respecting M. Clement's memoir On the 

 escape of elastic fluids and safety valves, &c. — MM. Julia Fonte- 

 nelle and Poisson read a notice respecting a new kind of paper 

 made from liquorice. — M. Boisduval read a memoir On the mono- 

 graph of the tribe Zyneides. 



Sept. 17- — M. Raspail announced that he had discovered in the 

 subterraneous logs of typha, a fecula possessing very peculiar cha- 

 racters, which he details — M. Milne Edwards deposited a sealed 

 packet. — M. Haldat sent two memoirs, one On diffraction, and the 

 other On magnetism in motion. — The following memoirs were read: 

 On the general system of the internal navigation of France, by 

 M. Brisson ; A second memoir, by M. Cauchy, On the application of 

 the calculus of residuums to physico-mathematical questions; 

 Researches into the vertebral organization of the lower order of 

 animals, by M. Robineau Desvoidy. — On the magnetic action 

 exerted in all bodies by the influence of a very powerful magnet, 

 by M. Becquerel. 



Sept. 24. — M. Gendrin, a physician, sent some researches into 

 the heat of hot springs. — M. Mozembas, of Bordeaux, sent a me- 

 moir On the means of constructing lightning conductors with ceco- 



nomy. 



