June, '09] 



ENTOMOLOGICAL NEWS. 



273 



No institution and no working lepidopterist should be with- 

 out this little book, which contains the results of many years 

 of painstaking work and which assists in fixing the status of 

 quite a number of doubtful species. 



The author believes in his work and so do I but he is 

 not over-assertive and does not claim infallibility; in fact he 

 prints on the fly leaf that, "He who never makes a mistake 

 never makes anything," and so he gives his conclusions in a 

 systematic careful way, backing them up with figures which, 

 to one who has examined as many of these structures as I 

 have, bear all the indications of accuracy. 



t/ncus 



Left Harfe 



Piolit Harhe 



*O ' 



Possibly my approbation of this essay may be explained in 

 large part by the fact that Mr. Pierce's conclusions are so ex- 

 actly like my own on the same subject and that his work 

 bears out to the full my own contentions as to the importance 

 of these structures in the determination of species. 



There is no such thing as abstracting a work of this kind ; 

 it must be read to be appreciated. 



C. T. BRUES has been appointed instructor in economic entomology at 

 Harvard under Professor Wheeler and will take up his residence there 

 the beginning of September. His address will be Bussey Institution, 

 Forest Hills, Boston, Mass. 



