APPEXDIX. 191 



in alcohol, and those that could not would generally lose 

 some of their colors by the immersion. Dry heat is the 

 best method, but it should be accompanied after death by 

 further drying after an opening has been made into the 

 body, lest the contents should decay. Parasitized speci- 

 mens form the best material for the cabinet, but even 

 shells from which the inmate has escaped can b}^ careful 

 manipulation and a little glue have their separated parts 

 so joined as to answer fairly the desired purpose. Solid 

 specimens can be pinned through one side of the thorax, 

 but the mere pellicle should have the hooks of the tail 

 securelv fastened to a little ball of cotton wool or bit of 

 felt, through which the pin may be passed. It is not easy 

 to glue empty chrysalids permanenth^ to cards, and these 

 are very apt to hide the i^arts one wishes at some future 

 time to examine. Skilful persons may attain some success 

 with thin-skinned chrvsalids, like that of the milkweed 

 butterfly, for instance, the shape of which 

 is diffictilt to retain, by removing the con- 

 tents through a small opening at one side 

 and stuffing with cotton. 



The best form of net for the capture of 

 butterflies is a bag fastened to a hoop or 

 ring of some sort, to which a handle ma}' 

 be attached. The hoop should be made of c^~ 

 galvanized iron wire, forming a circle about 

 twelve to fourteen inches in diameter, and 

 the bag, made of double bobbinet and at- ^^^ for'butL^r- 

 t ached to the wire by strong linen or cotton, flies, a, wire ring, 

 should taper res:ularlv, have a rounded ^''^^ f"*^ ^"^, '^° 



^ ® " . . insert into the fer- 



bottom, and be about thirty inches long, rule, fc: c point 

 so as to double over the net and and have ^'^^^^ ^^^^ p'"^ 



. , and net handle 



a lew inches to spare. By bending the meet. 



two ends of the wire as in Fig. 6, they can 



be dropped into a brass tube and securely fixed in place 



