474 



THE ANIMALS AND MAN 



ternal and internal anatomy; nests, cocoons, and all speci- 

 mens showing the work and industries of the various animals; 

 in short, any specimen of the animal itself in embryonic or 

 postembryonic condition, or any parts of the animal, or any- 

 thing illustrating what the animal does or how it lives, all 

 these should be collected as assiduously as the adult indi- 

 viduals. Each specimen in the collection should be labelled 

 with the name of the animal, the date, and locality, and the 



name of the collector, with any 

 particular information which will 

 make it more instructive. If 

 such special data are too volu- 

 minous for a label, they should 

 be written in a general note-book 

 called "Notes on Collections" 

 (kept in the schoolroom with 

 the collection), the specimen 

 and corresponding data being 

 given a common number so that 

 their association may be recog- 

 nized. In the following para- 

 graphs are given brief directions 

 for catching, pinning up, and 

 caring for insects, for making 

 skins of birds and mammals. 

 Fig. 241. Insect killing-bottle; and for the alcoholic preserva- 

 cyanide of potassium at bot- tion of Other kinds of animals. 



Insects. — For catching insects 

 there are needed a net, a killing- 

 bottle, a few small vials of alcohol, and a few small 

 boxes to carry home live specimens, cocoons, galls, etc. For 

 preparing and preserving the insects there are needed insect- 

 pins, cork- or pith-lined drawers or boxes, and small wide- 

 mouthed bottles of alcohol. 



The net, about 2 feet deep, tapering and rounded at its 

 lower end, is made of cheesecloth or bobinet (not mosquito- 

 netting, which is too frail), attached to a ring, one foot in 

 diameter, of No. 3 galvanized iron wire, which in turn is 



torn, covered with plaster of 

 Paris. 



