24 ■ PSYCHE [February 



larger states is a great desideratum. This is, however, impracticable. Prof. 

 Blatchley has made a special study of the group for a number of, years and brings 

 to the preparation of this work experience such as few have and that can be gained 

 in no other way. 



The work is practical in plan, clear and simple in diction, attractive, readable, 

 and altogether well adapted for use by the average person seeking information 

 upon the subject. It contains much biological information secured at first hand 

 during an extended experience in the field, and will be found invaluable to any 

 student of the group as found in the central states, and to the special student as 

 well. It contains a map of the state showing where collecting has been done, an 

 introductory chapter on the external anatomy, life history and enemies of orthop- 

 tera, a very full bibliography, a brief but adequate glossary, and a chapter on the 

 life zones of the state. Under each species are given its scientific and common 

 names, a brief synonymy with references to the more important literature, its 

 description, distribution, and biology. New species are described in Blattidae. 

 Acridiidae, Locustidae, and Gryllidae. The plates and figures, derived chiefly 

 from other sources, illustrate more or less effectively the more important genera 

 and species, diagnostic characters, etc, and the pink form of a katydid in color. 



The typography, though equal to the average in works from such sources, 

 might have been much improved. A few errors and inadvertencies need correction, 

 notably the use of tegmina for tegmen (pp. 135-6) and the repeated misspelling of 

 Dichromorpha. 



The chapter on the life zones is the only one which calls for especial remark 

 or criticism here. The statements regarding the sources of the Indiana fauna and 

 the relation of the species composing it to the life zones must be taken tentatively 

 in details until fuller knowledge is available. Though several families of the group, 

 — the Acridiidae in particular — are exceptionally valuable for the study of this 

 problem it is impossible to draw correct conclusions on such points from study of a 

 limited area, and the extralimital distribution of several of the species is widely at 

 variance with the conclusions stated. — A. P. Morse. 



