224- Royal Academy of Sciences of Paris. 



posited a manuscript memoir on a new kind of integrals. — M. 

 Fresnel, in tlie name of the section of physics, gave an unfavour- 

 able report on the efficacy of paragreles. — M. Vallot presented 

 a memoir entitled Determination of several plants mentioned 

 by M. C. Bauhin as unknown. — M. Edwards read a memoir 

 on the connexion between the vegetable and the animal king- 

 doms. — M. Brongniart, jun. read a memoir on the family of 

 the Bru-niacccc. 



May 15. — M. Dumas communicated, in a letter to the 

 Academy, a series of experiments he has made on the combi- 

 nations of arsenic and on some other Compounds; — MM. de 

 Jussieu and Mirbel gave a favourable report on M. Brongni- 

 art's memoir on the Bruniacece. — M. Latreille made a verbal 

 report on the second volume of M. Dejean's work on the spe- 

 cies of Coleoptera in his collection. — M. Dumeril made a 

 verbal report on M. Teraube's treatise on chiromancy. 



May 22. — M. Arago submitted to the Academy a fragment 

 of an aerolite which fell in the principality of Ferrara, on the 

 19th of January 1824. He related the recent observations 

 on this phaenomenon of nature, and pointed out their interest 

 in the double point of view of the chemical nature and mecha- 

 nical composition of aerolites. — M. Cordier was appointed to 

 make by means of the microscope a mechanical analysis of 

 this stone, sent by M. Creoli, professor of physics at Bologna. 



May 29. — M. Cauchy deposited a memoir on integrations. 

 — M. Chevreul read a memoir on dyeing. 



Annual public sitting on June 5 : M. Poisson in the chair. 

 At this sitting the following prizes and rewards were adjudged. 



1. Prize in Experimental Physiology, founded by M. de 

 Montyon. The Academy has decided that this cannot be 

 awarded for the present year ; but among the works submitted 

 to its examination, it distinguishes that of Dr. Brechet, of 

 Lyons, entitled Experimental researches on the functions ot the 

 ganglionic nervous system. This memoir contains a great 

 number of experiments on many of the most important ques- 

 tions in physiology. Notwithstanding its want of arrange- 

 ment and frequent lacuna?, the Academy could not hesitate to 

 reward the author; but it has confined itself to the awarding 

 to Dr. Brechet, by way of encouragement, the sum of 895 

 francs, at the same time engaging him to complete the work 

 before he publishes it. Another work which arrested the at- 

 tention of the Academy, sent from Italy by Dr. Lippi, and en- 

 titled Comparative- anatomical illustrations of the lymphaticc- 

 chyliferous system, is remarkable for the facts which it an- 

 nounces, and for the execution of the plates which accompany 



it. 



