J5 - BACTERIA. 



29. Bacteria. Examine under the high power a drop of water in which grass has 

 been allowed to soak for a W33k, and also a drop of liquid from putrfying meat. Draw 

 the various forms of bacteria you see : cocci ; bacilli ; bacteria ; vibrios ; spirilla ; colonial 



form?. 



SACCHAROMYCES. 



30. Yeast. -Make a fresh preparation of baker's yeast ; draw it under the high power, 

 showing: cells surrounded by cell-wall, containing protoplasm with vacuole ; buds; 

 chains of buds. 



Examine and draw the demonstration specimen of a yeast cell under the ^ inch 

 objective, stained to show the nucleus. 



