Royal Society.— Linnean Society. 67 
tus and P. niger, by Mr. Swainson.—On the Isocardia Cor 
of the Irish Seas, by the Rev. J. Bulwer, F.L.S.—Description 
of some new British Shells, by Dr. Turton: one of the shells 
described in this paper is generically new, and called Gale- 
omma; being characterized as follows: ‘Testa bivalvis, aequi- 
valyis, zequilateralis, transversa; margine antico ovato-hiante. 
Cardo edentulus. Ligamentum internum.” ‘The single spe- 
cies described by Dr. 'T., to which the conductors of the Jour- 
nal have assigned the’specific appellation Turtonz, was dredged 
up in the English Channel during a gale of wind; but Mr. 
Sowerby is stated to have two other species, one from the 
Mauritius and the other from Van Diemen’s Land.—Sketches 
in Ornithology, by Mr. Vigors, comprising these sections,— 
On the groups of the Vulturide—On a new genus of Falco- 
nida—On a new genus of Psittacide, and On the arrangement 
of the genera of Birds : the last section consists of a list of the 
genera of Birds as they arrange themselves under their orders 
and families, in consonance with the views exhibited in the 
author’s paper “ On the Affinities of Birds,” lately published 
in the Linnean Transactions.— Analytical Notices of Books.— 
The subjects described in the Number are illustrated by four 
plates, three of which are coloured. 
XI. Proceedings of Learned Societies. 
ROYAL SOCIETY. 
Jan. 12.7 PHE following papers were read: Observatioris 
on the heat of July 1825, together with some 
remarks on sensible cold, by W. Heberden, M.D. F.R.S.— 
Account of a series of observations to determine the difference 
of longitude between the national observatories of Greenwich 
and Paris, by J. F. W. Herschel, Esq. Sec. R.S.;. commu- 
nicated by the Board of Longitude. 
Jan. 19.—On the Cambridge transit instrument, in a sup- 
plement to a former paper, by Robert Woodhouse, Esq. 
M.A. F.R.S. Plumian Professor of Astronomy in the Univer- 
sity of Cambridge-—On the magnetic influence of-the solar 
rays, by S. H. Chaanine Esq. M.A. F-.R.S. 
Jan. 26.—On the barometer, by J. F. Daniell, Esq. F.R.S. 
LINNEHAN SOCIETY. 
Jan. 17.—Read a paper on some Cornish species of the 
genus Labrus, by Mr. Jonathan Couch, ¥'.L.S. Ame 
12 the 
