Redent Literature. 517 
while in wealth of illustration, in mechanical execution or in novelty 
of facts and theory, it stands second to none of these. Aside from 
the numerous maps, the illustrations have been mostly made by some 
of the photo-engraving processes, and the perfection to which these 
have arrived may be seen from the figures which accompany this 
notice, ` 
Passing by the chapters which give a history of the progress of 
eep-sea investigation and that detailing the special equipment of 
the “ Blake,” a small three-hundred ton steamers—for the work, we 
Goes account of the strange and bizarre creatures inhabiting those 
epths. As some of the work has been in type for two years we 
Tpnops, for instance, that curious fish without eyes, but with pecu- 
acre 4 phosphorescent organs occupying the whole upper 
urtace of the head, is figured, but no reference is made to Moseley’s 
recent investigation of its structure. 
b As a whole, the book is full of interest, not only to the naturalist, 
m to those who merely desire to keep posted on the latest dis- 
ag and explorations. Typographical and other errors are 
Ny few, but one of the features which seems peculiar is the 
nuon of the antiquated names Acalephs and Polyps. 
