METHODS OF PREPARATION. 55 



49. APPARATUS FOR MAKING CASTS, &c.— Continued. 



b. Frames and modeling tools. 



c. Molds: 



Of plaster. 

 Of gelatine. 

 Of paper. 

 Of paraffine. 



50. APPARATUS AND METHODS OF MAKING AND MOUNT 

 ING SKINS. TAXIDERMY. 



a. Tools : 



Flaying-tools. 



Scraping-tools. 



Taxidermists' tools for stuffing : 

 Forceps. 

 Pliers. 

 h. Preservatives and insect-powders : 



Arsenic and arsenical soap. 



Corrosive sublimate. 



Salt, alum, &c. 



Persian insect-powder. 



Syringes for application of insect-powder. 



Tobacco, snuff, used as preservatives. 

 c. Frames, &c. : 



Wooden frames. 



Wire frames. 



Plaster model-bodies. 



51. (ACCESSORY.) PHOTOGRAPHIC AND OTHER DELINEAT 

 ING APPARATUS. 



a. Photographic apparatus : 



Lenses. 



Cameras and fittings. 



Camera tripods and stands, with model. 



Fish Commission stands. 



Plates, and their results : 



Wet plates. 



Dry plates. 



Dark closets. 



b. Camera obscuras. 



c. Mechanical delineators. 



d. Methods of heliotyping and engraving illustrations. 



