LABORATORY AND PERMANENT OUTFIT. 



1. The laboratory should be a large room, properly 

 ventilated, with as many windows as practicable, and used 

 exclusively as a laboratory. An upper room is preferable 

 to a lower one, since the air is clearer and there is less 

 liability to disturbance from passers-by. 



2. The laboratory tables should be plain and solid, 

 oiled, but not painted or varnished, and large enough to 

 give each student all the space he requires without crowd- 

 ing. Drawers should be placed in the tables, or in a 

 separate case, in which the students' outfit may be kept. 



3. Receptacles for waste materials, conveniently 

 placed and frequently emptied, and plenty of clean 

 water are indispensable. 



4. A pair of balances, such as are employed by drug- 

 gists for accurate weighing, will be required. 



5. Microscopes. For the compound microscope, the 

 so-called continental stand is preferable, on account of its 

 simplicity, firmness, and convenient size. Two good objec- 

 tives, I and J inch, or their equivalent, and two eye-pieces 

 are necessary. Such an instrument may be purchased of 

 a reliable dealer for about 30. It will hardly be practi- 

 cable to equip the laboratory with lower-priced ones that 

 will prove satisfactory. 



Dissecting microscopes of simple construction are needed, 



