178 animal resources and fisheries of united states. 



50. Apparatus and jiethods op making and uiounting skins. 



TAXIDERMl . 



Tools. 



riaying-tools. 



Scraping-tools. 



Taxidermists' tools for stuffing : 



Forceps. 



Pliers. 



PreservafiTes and insect-poirclers. 



Arsenic and arsenical soap. 



Corrosive sublimate. 



Salt, alum, &c. 



Persian insect-powder. 



Tobacco, snuff, used as preservatives. 



Frames, &c. 



Wooden frames. 

 "Wire frames. 

 Plaster model-bodies. 



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

 ratus. 



Photographic apparatus. 



Lenses. 



Cameras and fittings. 



Camera tripods and stands, with model. 



Pish Commission stands. 



. Model of Fisli Commission camera-stand. U. S. Fish Commission. 



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

 enabling the photographer to operate his camera vertically. 



Plates, and their results : 

 Wet plates. 

 Dry plates. 

 Dark closets. 



Camera-ohscuras. 



ITIechaiiical delineators. 



ITIethods of hcliotyping^ and en^ravin^ illustrations. 



