562 Zooiogkal Proceedings of Societies. 



" Give the general and comparative history of the circulation of 

 the blood, in the four classes of vertebrated animals, before and 

 after birth, and at diiferent ages." He also began the reading 

 of a memoir. On the general views respecting monstrosity, with 

 the description of a new kind observed in the human specieSy 

 nayned aspalasome. 



June 8. — The Academy being informed by M. Arago, that 

 he now had at Paris two living Camelions, appointed a Committee 

 to make experiments on the changes of colour which the skin of 

 these animals undergoes. Mr. D. Barry, stafF-surgeon in the 

 Eno^lish service, read a memoir On the /notion of the blood in the 

 veins. 



June 13. — M. Bosc gave a report on M. Duveau's New re- 

 searches on the Natural Hislory of the Aphides, 



June 27. — M. Zugenbuhler claimed, by letter, the priority of 

 the ideas stated in Mr. Barry's paper above mentioned ; trans- 

 mitting a copy of a dissertation printed hy him six years before, 

 and entitled "• Dissertatio de motu. sanguinis per venas." 



July 4. — M. Bussy read a memoir On the action of heat upon 

 the fatty bodies. 



July 11. — M. Dupuy read his first memoir On the distillation of 

 the fatty bodies. 



July 18. — M. Cuvier made a favourable report on the Zoological 

 Collections brought home by the naturalists attached to the late 

 expedition under M. Duperrey. 



August 1. — M. de St. Ililaire read an extract from a work on 

 human monsters characterized by the absence of the arbrospinal 

 marrow, and named anencephala. 



August 8. — A memoir by M.M. Qaoy and Gaymard was read, 

 entitled. Observations on certain Crustacea, considered zoitJi j-e- 

 gard to their habits and geographical distribution ; succeeded by 

 the description of some neze species, discovered during M. Frey- 

 cineCs circumnavigation of the globe, 



September 12. — M. G. de St. Hilaire commenced the reading 

 of a memoir entitled On the beings of the intermediate degrees 

 of the animal scale, zchich respire both in the air and under water, 

 and which possess respiratory organs of two kinds, developed to a 



