«j3 French National Injlitute. 



tiflue of the veflels, duels and appendages of the liver, eon- 

 fidered in the principal clafles of animals, from man down 

 to infects, molufcse and worms. 



The objett of the fecond will he: an analvfis of the 

 hepatic or cyflic bile in the different clafTes of animals as 

 above mentioned. 



The memoirs of thofe who intend to be candidates for one 

 or other of thefe prizes or for the whole in one eflay, 

 muf be tra-fmitred, poll paid, to the fecretary of the clafs 

 of the mathematic 1 and phyfical fciences, before the firft of 

 jsfivofe in the year VIII. 



The prize for each queftion will be a gold medal of the 

 weight of a kilogramme ; and will be adjudged in the fi'ting 

 of Germinal 15th, in the year VIII. The memoirs may be 

 written in French or in Latin, or in whatever language the 

 authors choofe. 



Notice of the Labours of the Clafs of the Phyftcal Sciences during 

 the preceding three Months. By Cit. L.ASSUS, Secretary. 

 Read on the 15th Meflidor (July 3d.) 



In the clafs of the Phyfical Sciences during the laft three 

 months, feveral memoirs were read relating to chemiftry, 

 natural hiflovy, rural ceconomy and medicine, as applicable 

 to animals as well as man. Cit- Guyton, in treating of 

 the anomalies in affviitics, (hewed that thefe apparent devia- 

 tions open to cht mills a vaft field for new refearchrs. He 

 examined why there is no combination between the azot and 

 oxygen which exi'l fo abundantly in the atmofphere, and in 

 a (late of expanfion generally fo favourable to an union. 

 He likewife pointed out the means of producing it in an 

 apparatus capable of lupponing nine or ten times the weight 

 of the atmofphere. 



"I he fame chemifl; employed himfelf alfo in the recipro- 

 cal decompofition of falts, at a temperature below freezing ; 

 a phenomenon, the observation of which is of fo much im- 

 portance 



