Economic Entomology. 139 



save loss. Extensive as the losses from insects undoubtedly are 

 every year, there was not until the present time any one book 

 in which a farmer could hope to find mentioned all the common 

 pests that come before him in his yearly operations. This conspi- 

 cuous want has now been supplied by Dr. J. B. Smith, the 

 Entomologist to the New Jersey Agricultural College and 

 Experiment Station, and Professor of Entomology at Rutger's 

 College. Dr. Smith has been for many years one of our leading 

 authorities on practical entomology so that the present work 

 gives not only what is well known about the insects treated of, 

 but contains also the latest results of his own long experience. 

 In his introduction the author points out that Economic 

 Entomology is a science as 3'et hardly systematized, made up 

 of fragments published in different places and frequently contra- 

 dictory as to remedial measures suggested 



There have been books of information concerning insect 

 enemies of certaifi crops or kinds of crops, but no one work gave 

 the agriculturist and^the student of economic entomology the basic 

 knowledge that would enable him to recognize the nature of an 

 insect he found causing injury or to decide what kind of 

 remedies against it should be applied. 



The present work consists of three parts : the first is devoted 

 to Structure and Classification of Insects, and contains a 

 chapter pn their Growth and Metamorphoses. The second and 

 main part ot the volume is entitled the Insect World, and gives 

 a succinct and well-balanced account of all the different natural 

 orders into which insects are divided. Here are found mentioned 

 in their proper places and for the most part illustrated with 

 excellent figures, all the well-known injurious species, together 

 with indications of the best remedies. In this division the author 

 acknowledges assistance in the preparation of the chapter on 

 Hymenoptera from Dr. L. O. Howard, the U. S. Entomologist 

 and in that on Orthoptera from Prof. Lawrence Bruner. The 



