Royal Academy of Sciences of Paris. 145 
tagious or contagious nature of yellow. feyer.—Capfain Véne 
communicated a memoir on circular faunctioys.2-M. Magendie 
presented some notes on the history of goitres,: by Dr.-Poulin 
of Santa-Fé-de-Bogoté.—_MM. Legendre: and Cauchy made 
a feport on M. Berard’s memoir in which he proposes to 
prove the truth of the only theorem of Fermet which has not 
yet been demonstrated. parts 2 
Sept. 12.—M. Durville presented a MS.-memoir on tlie 
Flora of the Malouine Isles—M. Ampére communicated 
some new electro-dynamic experiments.—MM. Desfontaines 
and Labillardiére made a report on M. Ad. de Jussieu’s me+ 
moir on the family of the Rutacee.—M. Geoffroy St. Hilaire 
commenced the reading of a memoir entitledQirthe-beings 
of the intermediate degrees of the animal scalé.~vhich respire 
both in the air and under water, and which poSsess respiratory 
organs of two kinds, developed to a certain & "He pre- . 
sented a specimen of the Bireus Latro, in ,» besides 
branchia, there are organs which M.Geoffroy réval as lungs. 
Sept. 19.—M. Geoffroy read another menioir if’ ¢ontinua- 
tion, on the above subject.—M. Foulhious read a métoir on a 
law by which the arteries and nerves are governed ‘in their 
tespective relations. —M. Costa read a memoir on the epide- 
mic typhus which ravaged the commune of St. Laurent-des- 
Ardens and its environs, during six months of 1823.—A me- 
moir on the composition of new hydraulic morters, by M. Gi- 
rard, was referred to a Committee. sae 
Sept. 26.—M. Geoffroy St. Hilaire exhibited several living 
specimens of the common crab, C. m@nas, and detailed ver- 
bally the results of his researches on the respiration of the 
Crustacea. ° a 
Oct. 3.—M. Féburier read an account of his experinients 
on the electricity of oxygen gas.—M. Ch.Gemmellaro commu- 
nicated a memoir, in Italian, on the soil of Mount A&tna, with 
specimens in illustration —MM. Quoy and Gaymard read. 
some zoological observations on the Corals, made in the bay of 
Coupang, at Timor, and in the Isle of Guan, in the Mari- 
annes. 
Oct. 10.—M. Dulong read a memoir, entitled “* Researches 
on the refractive powers of elastic fluids.”—M. Lenoir, jun. 
read a memoir, by his father and himself, on the new instru- 
ments called Levelling-circles, which they have constructed. 
Oct. 17.—M. Damoiseau read a memoir on the comet with 
a short period.—M. Dupetit-Thouars read a report on M. 
Gaudichaud’s memgir respecting Cycas circinalis —M. Geof- 
ol. 67. No, 334. Feb. 1826. At Oct. 24. 
Fy St. Hilaire read 'a memoir on a foetal monster. 
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