172 Geological Society. 
cide feast, from which all details longed for by the scientific ento- 
mologist, regarding the natural affinities of genera, facts of localvaria- 
tion, and so forth, are eliminated. In these respects the present work 
strikes us as a superior one of its class. The author enters fully into 
the structure and metamorphoses of the different groups, discusses 
their natural relationships, and under each species gives full details 
regarding geographical distribution and variation. 
In dealing with these generalities he is, at the same time, never 
unnecessarily diffuse ; and his remarks and conclusions are those of 
a writer evidently well acquainted with his subject. The figures, 
in chromolithography by West, Newman, and Co., are excellent, and 
indicate a distinct advance in this department of art. Full descrip- 
tive characters are given of all species and genera, as well as of 
groups superior to genera. Such a work is deserving of all encou- 
ragement, and we trust that its success will answer the expectations 
of its promoters, the chiet of whom, we are informed in the pro- 
spectus, is Mr. D. Logan of Penang. 
PROCEEDINGS OF LEARNED SOCIETIES. 
i GEOLOGICAL SOCIETY. 
June 7, 1882.—J. W. Hulke, Esq., F.R.S., 
President, in the Chair. 
The following communications were read :— 
1. “Notes on the Annelida Tubicola of the Wenlock Shales, from 
the Washings of Mr. George Maw, F.G.S.” By George Robert 
Vine, Esq. Communicated by Prof. P. Martin Duncan, M.B., 
alta, Vale erse 
The author commenced with a sketch of the bibliography of the 
subject and of the known Silurian genera of tubicolar Annelids. 
This was followed by a description of the following genera and 
their contained species :—OCornulites, Conchicolites, Ortonia, Spi- 
rorbis. Of the last there is one species (S. minutus) from the 
Buildwas Shale; this differs only in the slightest degree from 
S. arkonensis, described by Prof. Nicholson from the American 
Devonians. The new genus Arenatubulites is in many respects a 
peculiar and interesting form, having the tube composed of minute 
grains of sand, ike Sabellaria and Terebella. The author describes 
two species, A. elongata and A. ampleaa; they occur in the Pick- 
wood beds. A description follows of the genus Tentaculites, which 
the author referred to the Tubicolar Annelids: and several species of 
it were described. 
2. “ Description of Part of the Femur of Nototherium Mitchelli.” 
By Prof. Owen, C.B., F.R.S., F.G.8., &e. 
The specimen described consisted of the distal portion, probably 
about one half, of a femur obtained from Darling Downs, Queens- 
