270 THE ZOOLOGIST. 
previous writers, as Martin, M‘Gillivray, &c., Mr. Brown proceeded to give 
a general description of the cliffs of the island, and thereafter treated of the 
several species of rock-birds inhabiting it. 
A paper by Mr. Robert Etheridge, jun., was read, ‘On the Occurrence 
of the Genus Pentremites in the Carboniferous Series of the East of Scot- 
land.” The author stated that in the ‘ Geological Magazine’ for March, 
1878, he called attention to the probable occurrence of the genus Pen- 
tremites in Scottish carboniferous rocks. A few crushed specimens of a 
small Pentremite had been since found at Kidlaw, in Haddingtonshire. 
Unfortunately, as is often the case in specimens of unusual interest, these 
examples were either so fragmentary or greatly crushed that the author 
was afraid that little beyond satisfactorily proving the identity of the genus 
could be made of them. However, further examination gave a more hopeful 
view of the case, and he was enabled to give a description of the fossils. 
A second paper was read by the same author entitled ‘ Notes on 
Carboniferous Brachiopods.” The several points treated of may be 
enumerated—(1), On the colour markings in Lingula mytiloides, Sorv. ; 
(2), On the occurrence of Syringo thyris-cuspidata in Scottish carboniferous 
strata; (8), Notes on Spiriferina Etheridget, Davidson; (4), Notes on 
Chonetes polita, M‘Coy; (5), On the punctate structure of Orthotites 
crenistria, Phillips; (6), On a small, distorted, and probably young form of 
Chonetes from the carboniferous beds of the East of Scotland; (7), Ona 
small specimen of Orthis, perforated by a crinoid stem, The remarks on the 
various species treated of were illustrated by drawings and full descriptions 
of the figures given. 
NOTICES OF NEW BOOKS. 
Recherches sur la Mue du Bee des Oiseaux de la famille des 
Mormonidés. Par le Docteur Louis Bureau. (Extrait 
du ‘Bulletin de la Société Zoologique de France,’ 1879.) 
Royal 8vo., pp. 63; planches et carte. Paris: Savy, 77, 
Boulevard St. Germain. 
In ‘The Zoologist’ for July, 1878 (pp. 243—240), we gave a 
translation of the more important portions of a remarkable paper 
by Dr. Bureau “‘ On the Moult of Bill and Palpebral Appendages 
in the Common Puffin,” then recently published in the ‘ Bulletin 
de la Société Zoologique de France.’ 
Since that date Dr. Bureau has been actively engaged in 
studying other species of the Puffin family, with a view to 
ef Kt 
