220 Royal Academy of Sciences of Paris. 



been made to Government of a process for dyeing woollen with 

 prussian blue ; — Notice respecting a watch made of rock crystal by 

 M. Rebillier ; — Memoir On a new system of de ligation by Dr. Mayor. 



M. Devoulx of llagusa presented a memoir On the finding of lon- 

 gitudes ; — M. de Rossel reported that the method was neither new 

 nor correct. 



The Academy heard the remainder of M. Amussat's memoir On the 

 means of stopping hemorrhages in arteries ; — Researches of M. Che- 

 villot on the gases in the stomach and intestines of man in disease ; 

 —and a memoir by M. Bane On the communication of motion by the 

 concussion of elastic bodies. 



September 14. — Manuscripts : — A letter from the Minister of the 

 Interior, who requested a report on a memoir by M. Carpentras;, 

 respecting the direction of balloons; — A letter from M. Fay, who 

 offered himself as a candidate for the place vacant in the School of 

 Pharmacy at Montpellier; — A letter in which M. Dubouchet states 

 his having found a solvent for urinary calculi which does not act upon 

 the bladder; — A memoir On mediate percussion, by M. Piorry ; — 

 Medico-legal considerations respecting the management of the In- 

 sane, by M. Brierre de Bismont;— A description of some improved 

 machines for the use of the blind in writing, by M. Charles Barbier; 

 — The goldsmith and jeweller's Fade mecurn, by M. Fessard. 



The Academy heard a memoir by M. Jobert respecting the fact 

 of the division of the soil into a great number of beds of different 

 natures ; — A memoir by M. Rigal, On some processes in lithotrity ; 

 — lastly, A dissertation On the inundation of St. Petersburgh, by 

 M. Raucourt. 



September 21. — Manuscripts: — Note respecting primitive roots, 

 by M. Berthevin ; — Notice by M. Payen respecting the hardness 

 which sometimes occurs in sulphate of lime ; — A memoir from Dr. 

 Mayor of Lausanne on a method of moving invalids; — M. Geoffroy- 

 Saint-Hilaire read a very favourable report respecting the labours of 

 the scientific commission sent to the Morea; and M. Brongniart made 

 a special report concerning the interesting geological researches of 

 M. Virlet. 



September 28. — Manuscripts: — A letter from Mr. Robert Grand 

 to M. Geoffroy containing the figure and description of an egg which 

 was found in a hole from which an ornithorinchus was observed to go 

 out ; it was considered as coming from this quadruped ; — Theore- 

 tical considerations respecting the fossil-bone caverns of Bize, by 

 M. Tournal ; — A sealed note from M. Dutrochet ; — A letter from 

 M. Kupffer to M. Arago on an ascent of Mount Elbruz. 



M. Cuvier read a very favourable report respecting the results of 

 Dr. Belanger's overland journey from India. 



M. Leroy d'Etioles read a memoir On the retention of the urine 

 occasioned by disease of the prostate, and on the paralysis of the 

 bladder. 



October 5. — Manuscripts : — A letter from M. Legrand On a case 

 of scrofula cured by preparations of gold ; — A letter from M. Foureau 

 de Beauregard, stating that the preparations of rhatany had succeeded 



in 



