62 Roi/al Academij uf Sciences of Paris. 



dering sea-water fresh. — M. Guion Desmoulins announced 

 that he had discovered a hquid by which sculptures in marble 

 might be cleaned without injury. ■■ — M. Durand, of Cherbourg, 

 transmitted a memoir, entitled Notice on the formation of 

 muriatic acid by means of nitric acid and carbon. — M. Mo- 

 reau de Jonnes read a statistical note on the propagation and 

 effects of a disorder which had been observed in various coun- 

 tries, and to which the name of Varioloide had been given. — 

 M. Maurice gave a verbal account of a work by M. Guillaume 

 Libri on various points of analysis. — M. Dumeril delivered a 

 verbal report on M. Bremser's " Zoological and Physiological 

 Treatise on the intestinal Worms of the Human Body." — 

 M. Geoffroy de Saint-Hilaire presented a lithographic plate, 

 entitled Determination of the sections of the cranium in 

 fishes; composition of the skull in man and in animals. — 

 M. Dupetit-Tliouars read a notice on certiiin particularities 

 of cotyledons and roots. — M. Serullas read a memoir on the 

 amalgam of potassium, and on the electricity developed by its 

 contact with water. 



Nov. 2. — M. Becquerel announced that he had determined 

 by experiment the intensity of the electro-dynamic force in 

 any one )3oiut of a wire uniting the two extremities of a pile, 

 and that it resulted from his researches that this intensity is 

 constant for the entire length of the wire. — M. Benoiston de 

 Chateauneuf, in his rej)ly to a letter which had been ad- 

 dressed to him, announced that he still continued his re- 

 searches on the influence of vaccination at Paris and in France. 

 — MM. Chaptal and Thenard delivered a, repoit on M. Pav- 

 en's memoir on the pyrites of Grenelle, &c. — M. Magendie 

 read a memoir, entitled Continuation of the series of ex- 

 periments on the fifth pair of nerves. — M. Loiseleur des 

 Longchamps read a memoir on the means of obtaining se- 

 veral crops of silk in a year, succeeded by some observations 

 relative to the history of silk-worms. — M. Raspail read a 

 memoir on the formation of the embryo in the Graminea;. 



Nov. 8. — MM. Payen and Chevalier read a note on the 

 quantity of free phosphoric acid appreciable by means of 

 turnsol. — M. Cordier made a verbal report on the Traite 

 elementaire de Mineralogie, by M. Beudant. — M. Dupin read 

 a memoir, showing the advantages of machinery to the class 

 of workmen. 



Nov. 15. — MM. Dumeril, Cuvier, and Magendie, gave a 

 report on M. Lauth's memoir relative to the lymphatic ves- 

 sels of birds. — M. Silvestre gave a verbal account of a work 

 by M. Marivault, On the Agricultural State of France, and 

 the means of improving it. 



Nov. 22. — M. Hazard junior, presented a work, the joint 



produc- 



