129" i 
BOOK NOTICES. 
Notes on the Gasteropoda <>l the Trenton limestone of Manitoba, with a descrip- 
tion of one new species, by J. F. Whiteayes of the Geological Survey of Canada. 
Canadian Record of Science, April 1893, pp. 317-328. 
This paper is one of a series on the Cambro-Siluiian fossils of 
Manitoba. The author's reports on the Orthoceratites of the Winnipeg 
basin, published in the Royal Society's Transactions for 1891 and 1892, 
are well known, whilst the remainder of the fauna of these Palaeozoic 
rocks will no doubt be shortly described. 
Mr. Whiteaves has had access to all the collections made by officers 
of the Geological Survey ; to specimens obtained during the Saskatchewan 
Exploring Expedition of 1858; to those collected by Hudson Bay 
officers and to notes on those of Sir John Richardson, and other Arctic 
explorers. The present report forms, therefore, an important contribu- 
tion to the geological history of those interesting and important regions 
of Canada. 
Amongst the collections received were those made by Prof. H. Y. 
Hind in 1858, by Dr. Seiwyn in 1872, by Dr. Bell in 1879 and 1880, 
by xMessrs MacCharles and Weston, in 1884; by Mr. Tyrell in 1889 
and 1890, and by Messrs Dowling and Lambe in 1889-90. The 
collections are from the following localities : East Selkirk, Lower Fort 
Garry and Nelson River (in Keewatin,) on the mainland and Big, Elk, 
Deer, Birch, Snake, Bereus, Jack Fish, Sturgeon, Black Bear and other 
islands in Lake Winnipeg. Sixteen species of Trenton Gasteropoda are 
recorded, as follows : 
Trenton Gasteropoda. 
i". Raphistoma lenticulare, Hall. 
2. Pleurotomaria subconica, Hall. 
3- " muralis, 1). D. Owen. 
/. Murchisonia Mi/leri, Hall. 
5- " gracilis^ Hall. 
6 - bellicincta, Mall, var. teretiformis, Billinss 
