Royal Academi/ of Sciences of Paris. 307 



has lately visited, hydrophobia is cured by making deep incisions 

 under the tongue of the patient.— M. Verniere sent some experi- 

 ments upon the means for arresting the action of poisons caused by 

 the bite of venemous animals.— M. Arago communicated the results 

 recently obtained by M. Despretz, relative to the law of Mariotte. 

 M. Bouvard presented a memoir containing a new discussion re- 

 lating to the meteorological observations made at the Royal Obser- 

 vatory at Paris.— M. Boullay finished the reading of his paper On 

 the double iodides. M. Schlick (a Danish architect) read a memoir 

 on the subterraneous passage now making under the Thames by 

 ]M. Brunei.— M. Raspail read an analytical extract from his phy- 

 siological researches on grains and oils. _ 



April 30.— M Ratienville announced that a dye of certain in- 

 digenous plants is capable of dyeing woollens of a. royal blue co- 

 lour without the use of indigo.— M. Denaix presented an essay 

 On methodical and comparative geography ;—M. Ostrogradsky, 

 a memoir On the propagation of heat in the interior of sohd 

 bodies;— M. Pihorel, Observations on the bite of rattle-snakes.— 

 M. Arago communicated a notice respecting the sounds produced 

 in INI. Clement's experiment.— M. Morin, apothecary at Rouen, 

 sent to the Academy an analysis of a concretion found in the 

 brain of a man who died of acute gastritis. According to him, this 

 concretion was composed of cholesterine, coagulated albumen, 

 and phosphate and carbonate of soda. According to the report of 

 M. Chevreul, the experiments of M. Morin are not sufficient to 

 determine with certainty the existence of cholesterine in the concre- 

 tion.— M. Labillardiere reported respecting the observations of 

 MM. Poiteau and Turpin relative to the peculiar directions which 

 are assumed by the radicle and stalk of a plant moved circularly : 

 the explanation of the two authors agrees with that which Mr. Knight 

 had previously given.— M. Cauchy gave an account of a memoir by 

 M.Roche, On the rotary motion of solid bodies— M. Poisson read a 

 memoir On the rotary motion of the earth.— The Commission directed 

 to present the candidates for the place of free Academician now 

 vacant, made its report;— the candidates are: M. le comte Dau, 

 MM. Cassini, Dcsgenettes, Lamande and General Rogniat. 



May 7. — The Academy received a memoir from M. Tabareau 

 On the explosion of steam-boilers.— A paper, intitled Examen de 

 rOuvrage de M. Didrochet surl'Agent immediat du Moitvement vital; 

 — M. Freycinet read a letter from the naturalists attached to the 

 expedition of M. Durville : it was dated ' Port Jackson.'— M. Arago 

 communicated a memoir which he had received from M. Boussin- 

 gault, upon the composition of native argentiferous gold. — M. Mo- 

 reau de Jonncs read a dissertation on the bite of rattle-snakes.--A 

 free Academician was elected : M. Cassini had 31 votes, and M. 

 Daru ::iO.— MM. Arago and Dupin gave a very favourable account 

 of M. Poncelet's course of mechanics applied to machines.— M. 

 Heurtelou[) read a memoir on litholritie, in which he related se- 

 veral new cases of cure. 



May 14. —M. Cordier announced the loss which the Academy had 



sustained by the death of M. Ramond.— M. Tabareau addressed 



2 1{ <2 a second 



