308 Royal Acadeiny of Sciences of Paris. 



these with each other as to principle, to trace out correctly the pro- 

 gress of tlie discovery of the steam-engine. He proceeded only 

 about half-way through his subject, having only come down to the 

 period of the Marquess of Worcester, His account so far does not 

 at all accord with that of M. Arago, who professes to have done the 

 same thing in the Annuaire for 1829. The subject will be con- 

 tinued. 



ROYAL ACADEMY OF SCIENCES OF PARIS. 



July Uth, 1828. — The Minister of the Interior sent to the Aca- 

 demy a description of a new clock, made by MM. Baillot and Le Roy. 

 — M. Arago communicated a notice from M. Auguste de la Rive, 

 respecting the phaenomena of the voltaic pile. — The reading of a 

 letter from M.Raspail was stopped by order of the President, on ac- 

 count of some improper expressions which it contained. — M. Pinel 

 sent a further account relating to his inquiries on intellectual orga- 

 nization. — M. Rostan proposed himself as a candidate for the vacant 

 place in the section of medicine. — M. Jaffart of Moissac wrote that 

 he had made a discovery respecting the astronomical circle.— M. 

 Gauvin gave an account of an improvement which might be made 

 in all keyed instruments. — The Academy afterwards heard a verbal 

 report by M. Latreille, respecting a work by M. Macquart, intitled, 

 Dipteres du Nord de la France; — the history of an unusual affec- 

 tion of the brain by M. Lugol ; — a dissertation on the ligaments and 

 muscles, by M. Gerdy. 



July 21. — M. Raspail communicated an experiment, which ap- 

 peared to him proper to explain the circulation remarked in the chara. 

 — M.Gruithuisen returned thanks to the Academy for the medal which 

 they had presented to him. — M. Conybeare also expressed his obliga- 

 tion for having been elected a corresponding member. — M. Arago read 

 a letter from M. de la Rive, in which he related several new facts 

 which are favourable to the purely chemical theory of the voltaic 

 battery. — M. Poiteau offered himself as a candidate for the vacant 

 place in the section of agriculture. — M. Vernier sent an extract from 

 a memoir containing very simple therapeutic processes, applicable to 

 all cases of poisoning. — M. Milne Edwards communicated some ob- 

 servations which he had made on the circulation of the Nymphon gra- 

 cilis. 



The remainder of the sitting was occupied by reading a very fa- 

 vourable report by M. Dumeril respecting the memoir of MM. Au- 

 douin and Edwards, On the respiration of the Crustacea; — by reading 

 a report by M. Brochant on M. de Bonnard's observations made at the 

 manganese mine of Romaneche nearMa^on ; — and lastly, by reading 

 a memoir by M. Beaujeu On the manufacture of beet sugar. 



The section of Medicine afterwards presented the following list of 

 candidates for the vacant place : MM. Serres, Edwards, Segalas, 

 Desgenettes, Alibert, Double, et Bally. Several members expressed 

 their surprise that the list did not contain the names of MM. Flou- 

 rens and Broussais. 



July 28. — The Minister of the Interior requested the Academy to 



name 



