234 C atalogue Raisonné. 
from Dongala, is actually found in the menagerie of the king of Prussia, 
near Potsdam. 
With respect to the Cynocephalus hamadryas, it appears that it has, through 
mistake, been considered, as two species,—the one, the baboon Simia cy- 
nocephalus, is nothing but the animal in his early youth,—the other, the 
Simia hamadryas, is only the male in the adult state. The author, who 
promises more complete details upon this subject, has seen with Mr. 
Hemprich, considerable troops of this species of monkeys in Arabia and 
in Abyssinia. They caught two adult individuals,—a young male, and 
they have brought home a young female alive, who is also in the mena- 
gerie of Potsdam. 


PROCEEDINGS OF SCIENTIFIC INSTITUTIONS. 
Royal Society of London—Nov. 19th. The meetings of the Royal Society 
commenced this evening ; the President in the chair. Part of a long and able 
paper, from the pen of Mr. Faraday, on the manufacture of glass for optical pur- 
poses, was read. A folio edition, in five volumes, of the Catalogue of the King’s 
Library, was presented by his Majesty, and other literary presents were made, 
for which thanks were voted to the donors. 
Geological Society.—Nov. 6th. 'This Society held its first meeting for the 
season this evening; the President, the Rev. Adam Sedgwick, M.A. in the 
chair. An interesting paper, ‘‘ On the Tertiary Formation of Gosau,” by Ro- 
derick Impey Murchison, Esq. F. R. 8. secretary, was read. 
Linnean Society. Nov. 2d. The first meeting of the present session took 
place this evening; A. B. Lambert, one of the Vice-Presidents, in the chair. 
There was avery full attendance of fellows. 
A long paper was read on the parasitical connexion of Lathrea squamaria, and 
the peculiar structure of its subterranean leaves, by J. E. Bowman, Esq. F.1.S. 
Several beautiful illustrative drawings accompanied the communication. The 
author seems to consider that the absence of green colour, so common in parisi- 
tical plants, (for instance Orobanche, Monotrapa, and some others familiar to 
our botanical readers,) is to be attributed to the want of proper leaves.—Six gen- 
tlemen were admitted fellows ; and seven others proposed. On the table lay a 
considerable number of valuable presents ; amongst them, an extensive collection 
of plants presented by the East India Company. These had formed part of the 
collection brought to England lately by Dr. Wallich, superintendent of the Com- 
pany’s garden at Calcutta; there were also presented by J. W. Bennett, Esq. 
two cases, containing specimens of fish from Ceylon; together with various -fo- 
reign works of literature and art. ; 
15th Session of the Helvetic Society of Naturalists, held at the Hospital of 
the Great St. Bernard, the 2ist, 22d, and 23d of July 1829.—The remarkable si- 
tuation of the place in which the members met this year, was eminently favour- 
able to the lovers of natural history, and all the intervals which occurred between 
the meetings and the repasts, which were held in common, were passed in. re- 
search of the picturesque, or of objects of natural history. 
About 100 persons were present; and, among the strangers, were Messrs. 
Leopold de Buch, Bouvard of the Beard of Longitude of Paris, and Michaud, 
Member of the Royal Society of Agriculture of the same town. 
Mr. Biselx, rector of Vauvry, in the absence of the President, Mr. de Rivaz, 
opened the meetings by an historical account of the Hospital, in which they were 
