434 APPENDIX. 



Formalin. Usually about a 2^-^ is used for storing material, 

 made by taking 9 7 J- parts water in a graduate and filling in z\ 

 parts of the 40^^ formalin. 



Salt solution 5^ ; sugar solution 15^ (for osmosis). 

 Iodine solution. Weak — to 300CC distilled water add 2 



grams iodide of potassium ; to 

 this add i gram iodine crys- 

 tals. 

 Strong — use less water. 

 Eosin. Alcoholic solution. Distilled water ^occ, alco- 

 hol 50CC, eosin crystals \ gram, potash alum 4 

 grams. 

 Aqueous solution. Distilled water loocc, eosin crystals 

 I gram. 

 Chloral hydrate ; aqueous solution, nearly sat. sol. 

 Schimper's solution. Chloral hydrate 5 parts, water 2 parts, 

 iodine to make a strong color. 



Student list of apparatus. 



Several glass slips 3X1 inch, and more circle glass covers, 

 thin and -I inch diameter. 



One scalpel. 



One pair forceps, fine points. 



Two dissecting needles (may be made by thrusting with aid of 

 pincers a sewing needle in the end of a small soft pine stick). 



Lead-pencils, one medium and one hard. 



Note paper; a good paper, about octavo size, smooth, unruled, 

 with two perforations on one side for binding. Several manila 

 covers or folders to contain the pajjcr, perforated also. Enough 

 covers should be provided so that notes and illustrations on dif- 

 ferent subjects can be kept separate. 



REFERENCE BOOKS. 



The following books are suggested as suitable ones to have on 

 the reference shelves, largely for the use of the teacher, but sev- 



