244 THE CANADIAN NATURALIST. [Aug. 



According to these figures, a profit of $23.91 might be made on 

 every ton of the ore treated. There may of course be many errors 

 in these estimates, but they would seem at least to justify a consid- 

 erable expenditure in order to ascertain whether the process can 

 be worked on the manufacturing scale with success and profit. 



Acton Yale, C. E., 16th June 1865. 



SYNOPSIS OF THE FISHES OF THE GULF OF ST. 

 LAWRENCE AND BAY OF FUNDY. 



By Prof. Theodore Gill, M.A. 



The interest that has for some time been manifested in the 

 fishes and fisheries of the Gulf of St. Lawrence and Bay of 

 Fundy, and the absence of facilities for the ready identification of 

 some of the species, appear to render desirable the publication, 

 in a brief and connected form, of the views respecting the nomen- 

 clature and affinities of the species, resulting from our present 

 knowledge of the class. This is the more desirable, as some of the 

 observations hitherto made — on account of the difficulty ex- 

 perienced in identifying the species — have not that full value to 

 which the conscientious care with which they have been made 

 should entitle them. The present enumeration is based on the 

 observations of Messrs Richardson, H. R. Storer, Dawson, Jones, 

 Perley, Fortin, and Bell, verified in most cases by an examination 

 of specimens either from the district referred to, or from closely 

 contiguous portions of the same faunal region. 



In the enumeration of the species, I have essentially followed 

 the order adopted in the ' Catalogue of the Fishes of the Eastern 

 Coast of North America,' modified however in some important 

 respects by subsequent studies. Still further departures should 

 be made, — but I defer such changes till the publication of a more 

 extensive work on which I am now engaged. The analytical 

 tables, artificial as such are, will, it is hoped, prove useful in 

 assisting in the progressive identification of unknown forms, as 

 well as in conveying information concerning the technical or 

 natural characters of the groups, and in many cases their relations 

 to each other. How difficult the compilation of such tables is 

 can be readily appreciated by experienced ichthyologists who will 

 examine any of those hitherto published. I may not therefore 

 possibly hope that the present attempt should be exempt from 

 many defects: only the more obvious superficial characters of 



