THE CANADIAN ENTOMOLOGIST 243 



from adequate. The species name is placed at the bottom of each 

 column as well as at. the end of the series or of the space left for ex- 

 tension. Each label has the name in brackets except the last of 

 these. Reference has sometimes to be given to a continuation of a 

 series in some extra box not in the sequence. Series consist of 

 specimens picked to show the variation as much as possible. It 

 has always been the custom, at the end of a season's collecting, 

 to carefully examine all the new material in each species taken, 

 and to pick out examples showing modifications not yet in the 

 series, and relax, set and install them. Owing to lack of time in 

 the summer very few things are set fresh. Unfortunately there 

 are as >et \ery few early stages represented. Each drawer or box 

 has an outside label on the front, on which they are numbered 

 consecuti\-ely, with the names of all the genera contained therein, 

 and when a genus is not all in one case, with some indication of 

 the included species or group. Extreme accuracy of data is at- 

 tempted. 



The locality of personally or locally collected speci- 

 mens is, as a rule, indicated by means of two labels on the trans- 

 fixing pin. The uppermost of these gives the general locality and 

 province, exact date when possible, and collector's name, though 

 it has been a general custom to put the owner's name to all ma- 

 terial collected by one or two constant assistants in the immediate 

 district. This practice w^as to save extra trouble, but is not strictly 

 in accordance with principles. A smaller label beneath this gives 

 the more exact locality. Method of capture is occasionally in- 

 dicated. Bred specimens are so marked, with "ex larva" or 

 other stage, and food plant. Pairs taken in copula bear identify- 

 ing labels. Specimens acquired from outside sources were formerly 

 marked with collector's name and from whom received, and date 

 of receipt. Latterly all such material has been given a small label 

 bearing the year of acquisition, and a number, corresponding to 

 similar numbers in an "Acquisition" book, in which full details 

 of the receipt are noted. For instance, "13-16" on a small, 

 se*parate label beneath the locality label refers to a note in the 

 book under the year 1913, and Acquisition No. 16. This note 

 gives details of the transaction, whether purchased, exchanged, 

 donated, etc., date of receipt, number and class of specimens, 



