122 ELEMENTARY TECHNOLOGY. 



move water from specimen by alcohol, dilute at first then abso- 

 lute. Render object transparent by clove oil or turpentine, 

 place it in medium and put on thin cover. 



3. Glycerine. For wet preparations. Use glue to cement 

 cover glass. 



4. Farrant's solution. Equal parts glycerine, gum and 

 arsenious acid. 



5. Glycerine jelly. Gum and glycerine with carbolic acid. 

 Tissues best soaked in dilute alcohol. 



10. Mounting. 



1. Slips. Standard size 3x1 inch. 



2. Cells. Made with rings of glass, vulcanite or cement. 



3. Turntable. For cement rings or to cement cover to 

 slide. 



4. Thin covers, three sizes, I, 2 and 3. From 1-50 to 

 1-250 inch thick. 



5. Cements, Canada balsam, dammar, gold size, white 

 zinc cement, asphaltum varnish. The latter most generally 

 useful. 



