178 animal eesources and fisheries of united states. 



50. Apparatus and methods of making and mounting skins. 



TAXIDERMl . 

 XOOl!^. 



riaying-tools. 



Scraping-tools. 



Taxidermists' tools for stuffing : 



Forceps. 



Pliers. 



Preservatives and inseet-powdcrs. 



Arsenic and arsenical soap. 



Corrosive sublimate. 



Salt, alum, &c. 



Persian insect-powder. 



Tobacco, snuflf, used as preservatives. 



Frames, &c, 



"Wooden frames. 

 "Wire frames. 

 Plaster model-bodies. 



61. (Accessory.) Photographic and other delineating appa- 

 ratus. 



Photo^raphie apparatus. 



Lenses. 



Cameras and fittings. 



Camera tripods and stands, with model. 



Fish Commission stands. 



. Model of Fish Commission campra-stand. TT. S. Fish Commission. 



This stand is employed in taking photographs of largo fishes. It 

 enahling the photographer to operate his camera vertically. 



Plates, and their results: 

 Wet plates. 

 Dry plates. 

 Dark closets. 



raiiicra-ob^eiiras. 



]Tlrrhniiir:il delineators. 



Iflediods of lieliotypin;;^ and engraving' illiiNtrations. 



