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. 
