A GUIDE TO 
THE 8TUDY .OF Fishes 
By DAVID STARR JORDAN 
2 volumes, 934 illustrations. 1223 pp. $12.00 net, postage extra. 
32 pp. Prospectus free on application. 
A comprehensive work, at once scientific and popular, by 
the leading American ichthyologist. It discusses the structure, 
habits, evolution, and economic value of fishes. It treats of the 
characteristics of chief groups, emphasizing those which by 
reason of divergence from typical forms are of especial interest. 
Extinct fishes are discussed along with their living relations. 
Nothing has been spared to make the work, in illustration and 
mechanical execution, worthy of a magnum opus. There is an 
abundance of pictures in half tone and other forms of black-and- 
white illustration, and the frontispiece of each volume shows in 
colors some of the remarkable fish brought by the author from 
his Pacific explorations. There are also portraits of the world’s 
leading ichthyologists. The work is issued in two sumptuous, 
large octavos, and is intended to be a valuable handbook for 
technical students and interesting to anglers and nature lovers, 
AMERICAN INSECTS 
By VERNON L. KELLOGG 
With 812 figures and 11 colored plates. 647 pp. $5.00 net, 
postage extra. 
This sumptuous volume covers the entire American insect 
world, including moths, butterflies, and beetles, to which separ- 
ate volumes are often devoted. Written in a style to interest the 
general reader, the arrangement is systematic and reasoned, and 
it is probably the most valuable handbook of the subject for the 
technical student or amateur collector. Habits, life, history, 
relations to man, to other animals and to plants are given special 
prominence. It is distinguished by much new matter, the results 
of the author’s ingenious observations, and by many original 
pictures illustrating species not befere figured in general insect 
books. 
HENRY HOLT & CO. 22 West,234 Street 
New Yor 
