METHODS OF PREPARATION. 55 
49. APPARATUS FOR MAKING CASTS, &c.—Continued. 
b. Frames and modeling tools. 
e. 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. 
b. Preservatives and insect-powders: 
Arsenic and arsenical soap. 
Corrosive sublimate. 
Salt, alum, &e. 
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. 
