LABORATORY DIRECTIONS IN 



C. LABORATORY ARRANGEMENTS AND REGULATIONS 



1. General Laboratory Directions. Each student on leaving the 

 laboratory should leave his place and instruments in good condition. 

 Return the microscope, dissecting microscope, trays, etc., in good con- 

 dition to their proper places. Clean your place at the table. Push the 

 stool under the table. Do your part to leave the laboratory in good order 

 for the next section. 



2. Laboratory Notes Must not be Removed from the Laboratory 

 Without Permission. At ohe conclusion of each laboratory period put 

 all your work, complete or incomplete, in an envelope, properly labeled 

 and deposit it in tho plaps indicated by the instructor. 



3. Always put your name, section and laboratory seat number on your 

 text-book, laboratory manual, and envelopes so that they may be easily 

 identified. 



4. Report immediately to the^instructor or his assistant any part of 

 the laboratory equipment that is missing or out of repair. 



D. LABORATORY RECORDS 



The laboratory records consist of notes and drawings which should 

 supplement each other. If laboratory records are to be accurate they 

 must be recorded at the time the observations are made, not hours or 

 days afterward. 



1. Notes. The laboratory work of the course consists of 13 exercises. 

 With the exception of the first, which is a preliminary drill in the use of 

 the microscope, each exercise is designed to illustrate certain generaliza- 

 tions. The facts upon which these generalizations are based can, in 



