LABORATORY RULES 3 



3. To facilitate study, students may work in pairs in 

 the preparation of culture media and the cultivation of 

 organisms; but each student is responsible for a first- 

 hand and independent description of each organism 

 studied, as well as for stained cover-slip preparations. 



4. Read carefully in the textbook and the laboratory 

 guide the work for the day. This will greatly facilitate 

 an intelligent and systematic plan of work. 



5. Keep careful, neat, systematic notes of each exer- 

 cise, and have them ready for inspection at any time. 

 In the case of exercises devoted to the preparation of 

 culture media, a simple statement as to their completion 

 is sufficient. 



6. Printed charts for description of cultures can be 

 obtained on application to the laboratory assistant. 



7. Accurate sketches must be made when called for 

 by the directions. 



8. All the notes pertaining to each exercise must be 

 kept together. "University covers" of suitable size are 

 recommended for this purpose. 



9. Store clean cover-slips in a Stender dish and cover 

 with 96 per cent, alcohol. A soft linen cloth is necessary 

 for wiping them. An ordinary clean handkerchief will 

 do very well. Coarse material breaks them easily. 



LOCKER OUTFIT 



150 culture-tubes. 

 10 potato culture-tubes. 

 6 fermentation-tubes. 

 15 Petri dishes (for plate-cultures). 



3 Erlenmeyer flasks, one 1000 c.c., two 500 c.c. each. 

 2 glass funnels, one 4 inches, one 6 inches. 



4 bottles for staining-fluiols, 



