PART I 
GENERAL DIRECTIONS 
LABORATORY REGULATIONS 
1. Desks and Lockers. Each student is assigned a desk and given an 
individual locker in this desk. The student will be held responsible for the 
condition of the desk at the end of each meeting of his laboratory section. 
2. Apparatus. The apparatus needed in the laboratory work will be 
found in the locker. The apparatus should be checked with the list placed 
on the blackboard by the instructor. Missing articles should be obtained from 
the storeroom before the locker is accepted. Any damaged article should be 
exchanged at the storeroom. 
3. Supplies. The materials needed for the work of each laboratory 
period will be placed on the desk before the section assembles. Additional 
supplies, which may be needed from time to time, may be secured at the 
storeroom. On one of the white cards to be found in the metal box on the 
desk, place your name, locker number, and the supplies you wish. Present 
the card thus made out to the storeroom. 
4. Return of Apparatus. On one of the blue cards to be found in the 
metal box on the desk, place your name, locker number, and list of the 
apparatus you are to return. Present the card, together with the apparatus, 
at the storeroom. 
All glassware returned to the storeroom must be clean and dry. Ap¬ 
paratus is to be returned at such times and in such amounts as may be an¬ 
nounced. 
5. Waste Material. All waste paper, cotton plugs, matches, and broken 
glassware must be placed in the central compartment of the metal box to 
be found on each desk. 
6. Washing Apparatus. All dirty apparatus is to be washed at the large 
wall sinks. The small sinks are for staining purposes only. 
7. Arrangement of Desks. At the end of each laboratory period each 
student must place his desk in order: 
(a) Return all bottles to tray. 
( b ) Place all waste material in the box. 
( c) Return the stencil to its place. 
(d) Wipe off the entire desk top with a damp sponge. 
(e) Place the stool under the desk. 
8. Microscopes. Whenever possible each student is assigned an in¬ 
dividual microscope. After assignment, the one using the microscope will 
be charged for any injury or neglect happening to the instrument during 
the regular scheduled laboratory periods at which he works. The microscope 
should be examined as soon as it is removed from the locker to see that it is in 
working order. The microscope must be returned to the locker at the end of 
the laboratory period. 
