Royal Academy of Sciences of Paris. 223 



Pharmacy of Paris. — M. Dupetit-Thouars read a memoir 

 entitled An examination of two late memoirs on vegetable 

 physiology. 



April 3. — M. Pichard communicated some reflections On 

 the molecular action of liquids on each other. — M. Warden 

 was elected a corresponding member in the section of geo- 

 graphy and navigation. — M. G. de St. Hilaire communicated 

 some observations made on eggs modified in their develop- 

 ment by exterior means. — A memoir by M. Richard was read 

 on the pellicular tension of the surface of liquids. 



April 10. — M. G. St. Hilaire continued the report of his 

 researches in the establishment for artificial incubation at 

 Auteuil. — MM. Latreille and Bosc gave a report on M. De- 

 jean's memoir on the genera forming the tribe of simplicipedes 

 of the CarabidcE. — A note by M. Gambart was read respect- 

 ing the comet discovered on the 27th of February by M. 

 Biala, and observed at Marseilles on the 9th of March by M. 

 Gambart. — M. Azais read a note on the heat and the magne- 

 tism of the globe. — M. Marcel de Serres announced that he 

 had recently found a great femur among the fossil bones at 

 Montpellier. — M. Cauchy deposited a memoir entitled On 

 the integration of linear equations of an equal order between 

 two variables. 



April 1 7. — M. Morel de Vinde made a verbal report on the 

 treatise on the potatoe by MM. Payen and Chevalier. — M. 

 Cauchy deposited a memoir and general formula relative to 

 the transformation of simple integrals taken between the limits 

 O and X of the variable. 



April 24% — M. Cuvier read a report on the changes under- 

 gone by chemical theories, and on some new applications of 

 chemistry to the useful arts. 



May 1. — M. Boryde St.- Vincent read a portion of a letter 

 addressed to him by M. Pavon, a Spanish naturalist, respect- 

 ing the naturalization of cochineal in the environs of Malaga. 

 — M. Robinet announced an apparatus invented by him for 

 the purpose of destroying vesical calculi by means of chemical 

 solvents. — Mr. P. N. Johnson, of London, transmitted a note 

 relative to palladium, with three specimens of a preparation of 

 that metal. — MM. Gay Lussac, Dulong and Ampere, gave a 

 favourable report on M. Pouillet's memoir on the electricity 

 of gases, and on one of the causes of the electricity of the at- 

 mosphere. 



May 8. — M. Chaussier presented an anatomical specimen 

 exhibiting a transverse fracture of the sternum at the upper 

 third of this bone, produced during labour by the action of the 

 sterno-pubic and sterno-mastoid muscles. — M. Cauchy de- 

 posited 



