32 



BIRDS'-NESTING. 



least handling. In the case of the smaller nests, 

 whenever three or four specimens belonging to the 

 same species are secured, the little boxes which they 

 occupy are set inside of a larger box, and the whole 

 series is thus kept together without loss of room. 

 This is a very advantageous arrangement. 



THE BREWSTER NEST-BOX. 



PURIFICATION OF SPECIMENS. 



Before packing nests, it is always well to be quite 

 sure that they are free from insects or decaying 

 matter. Various methods of fumigation can be em- 

 ployed to avoid unpleasant odors, the increase of 

 vermin or other harm. One way is to inclose the 

 ne^t in vapor of carbolic acid or other disinfectant, 



