430 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 6 



A Laboratory Guide to the Study of Parasitology, by W. B, Herms. 



The Macmillan Company, p. 1-72, 1913. 



The teacher of biology will find much suggestive in this guide to the study of 

 parasitology, using this term in a somewhat broad sense and with special reference 

 to its economic bearings. The author has not hesitated to include one or two forms 

 which may not prove to be pathogenic, since it is comparatively easy to omit a 

 lesson or two. Outlines are given for the study of various types of insects mouth- 

 parts and their bearing on the dissemination of disease elucidated. Representative 

 types, such as the bird and true lice, bed bugs, cone-noses, mosquitoes, horse flies, 

 house flies, stable flies, etc., are assigned to one or two periods of two and one-half 

 to three hours. Parasiticides, amoeba), trypanosomes and malarial parasites are 

 also provided for in the course, a total of about 40 lessons. 



Part 2 is devoted to helminthology, the various types of worms being studied in 

 much the same way, one lesson dealing with anthelminthics- 



The provision for biological work in part 3 adds greatly to the value of the guide 

 in our estimation since the students thus have an opportunity of seeing a portion 

 of the processes in operation. The author has naturally selected for this easily 

 obtained and handled forms such as the house fly, the mosquito and flea. 



There is enough in each lesson to guide the student working under competent 

 direction though comparatively little can be learned from the guide itself. The 

 student is compelled to study the material or rely in large measure upon the in- 

 structor, our ideal in laboratory guides. 



Biologien heimischer Schmetterlinge schadlich in Garten, Feld 

 und Wald. By Paul Ihle. Bohler u. Recke, Biebergasse 8, Frank- 

 furt a. Main, Germany. Three Series. Marks 22.50. 



This recent publication consists of a collection of thirty colored plates of the differ- 

 ent stages in the life history of some of the more common insect pests of the gardens, 

 fields and forests of Europe, each plate accompanied by explanatory inscriptions. 

 The coloring is excellent (the writer has compared the plates with specimens of the 

 insects), and the drawing good. 



Perhaps the work will be of most value in North America to those engaged in the 

 inspection of imported nursery stock, as many of the insects figured are liable to 

 reach this country on importations, and a study of the figures of the different stages 

 should be of great assistance to inspectors, teaching them what to watch for. The 

 low cost of the work (about $5.75) should bring it within the reach of all, and the 

 importance of an acquaintance with the appearance in their different stages, of pests 

 likely to reach this country at any time would seem self-evident. The writer is 

 informed that it is not unlikely that additional series and descriptive text may be 

 issued later if the demand should seem to justify it. G. E. Stechert & Co. of New 

 York are handling the work. 



H. T. F. 



Die Angewandte Entomologie in den Vereinigten Staaten (Applied 

 Entomology in the United States) by K. Escherich, pages 196, 

 figures 61, Paul Parey, BerHn. 1913. 



This work contains much familiar to Americans and is of interest because it records 

 the impressions of a gifted European qualified by experience to pass expert judgment. 



