94 



748. GOOSE-QUILL COLLECTING BOTTLE. 



This is made of a small cyanide bottle or test tube, and differs from 

 the foregoing in that a goose quill is introduced through the cork, so 

 that small specimens can be put into the bottle without first taking out 

 the cork. This form of bottle will last for several days, but will need 

 recharging oftener than other styles. 



749. LARGE CYANIDE BOTTLE. 



Similar to No. 745 or 74G, but larger, and employed to kill the larger 

 moths, etc. 



750. CHLOROFORM AND ETHER BOTTLES. 



These are of especial value in the case of butterflies, moths, and del- 

 icate Hymenoptera and Diptera. An ordinary stout bottle, with a 

 camel's hair brush securely inserted in the cork, answers the purpose, 

 or iiL place of the brush a dropping-needle may be inserted in the cork. 

 Both styles are shown. 



Apparatus for Rearing Insects. 



A diversity of apparatus for the rearing of insects, indoors more 

 particularly, is used in the work of the Division of Entomology. A 

 considerable series of breeding-cages, jars, etc., is exhibited, showing 

 practically all the important vivaria needful for the securing of insects 

 and their protection during the study of their transformations and 

 habits. 



751. LARGE GLASS BREEDING JAR WITH EARTH. 



Illustrating method of breeding grass-feeding larvae in jar with 

 earth, in which the larvae may enter for pupation or hibernation. 



752. FLOWER-POT BREEDING-CAGE. 



This is a simple device for the rearing of insects on growing plants, 

 either indoors or out. It consists of an ordinary flower pot, containing 

 the plant which is to furnish food for the insect or which is already 

 effected, and a glass cylinder which fits closely into the top of the 

 pot, the free end being covered with muslin. Subject: Oak gall, from 

 New Mexico. 



753. LARGE GLASS BREEDING JAR. 



Containing maple leaves, and illustrating the method of breeding 

 Lepidopterous larva? which enter the soil to pupate. Subject: The 

 Maple Worm, Dryocampa rubicunda. 



755. THE BREEDING CAGE OR VIVARIUM. 



This, as at present improved, consists of three distinct parts — the 

 base, the box proper, and the top or cover. The base is specially con- 





