The Classification of Insects 57 



of most of the insects in an amateur's cabinet (or in a professional ento- 

 mologist's either, for that matter) will have to be done by systematic 

 specialists in the various insect groups. Few professional entomologists 

 undertake to classify their specimens to species in more than the one or 

 two orders which they make their special study. Duplicate specimens should 

 be given numbers corresponding to those on specimens kept in the cabinet, 

 and be sent to specialists for naming. Such specialists, whose names can 

 be learned from any professional entomologist, have the privilege of retain- 

 ing for their own collections any of the specimens sent them. 



