The author submitted his manuscript to President Jordan “to be justified in advancing the claim” that the descriptions of the different fishes “are absolutely reliable and correct,” and a prefatory note by Dr. Jordan is in that author’s most pleasing style and adds considerably to the literary excellence of the volume; but evidently that distinguished ichthyologist did not believe any responsibility attached to him, for even a cursory glance by him over the manuscript would have eliminated a number of ichthyological incongruities, such as the inclusion of the white bass, one of the Serranidæ, in the same family as the black basses (Centrarchidæ). The author’s conception of zoölogical nomenclature and classification is decidedly novel. In the final chapter, on “scientific names of fish mentioned,” the first species referred to is _Salmo salar_, of which it is stated that “the word _salmo_ is used in connection with a large variety of the trouts, to designate the family or descent. It is the first name given, as is the case with all other kinds of fish, being the specific name indicating the species. The other names following are subspecific.” The land-locked salmon of the Saguenay River is by some systematic writers regarded as a variety of the sea salmon, and bears the name _Salmo salar ouananiche_ McCarthy. Strange to say, this is the only species in the volume for which the name of the original describer is given, and in explaining his own connection with the fish, Mr. McCarthy says: “McCarthy, so named from his first writing fully regarding the fish!” To the zoölogist the volume will be of no use, as it embodies few new observations on the fishes considered and is largely a compilation from other well-known works. The author, however, deserves credit for bringing the subject to the attention of anglers in such an attractive form; and, as an attempt to extend the knowledge of the habits, distribution and relationships of our game fishes among this large and influential class of citizens, the volume should be accorded a welcome. _MICROSCOPY OF DRINKING-WATER._