CONTENTS. 

 I. 



YEAST. 



General characters Fermentation Appearances of yeast under the 

 microscope Structure of yeast cells Chemical composition Mode of 

 multiplication Growth in Pasteur's fluid Physiology of yeast La- 

 boratory work. . . ' i ... p. i 10. 



II. 



PROTOCOCCUS. 



Habitat Histological structure Modes of multiplication Depend- 

 ence on light Physiology of Protococcus Motile stage Laboratory 

 work ". " ; . .' . p- u 16. 



III. 

 PROTEUS ANIMALCULE. COLOURLESS BLOOD CORPUSCLES. 



AMCEILE Habitat Movements Structure Chemical composition 

 Effects of temperature and electric shocks Encystation COLOUR- 

 LESS BLOOD CORPUSCLES Movements Structure The influence of 

 various reagents on them Physiology of Amoeba. Laboratory work. 



p. 1724. 



IV. 



BACTERIA. 



Form and structure Movements Spirillum volutans Stationary 

 stage Zoogloea Growth in Pasteur's fluid Relation to putrefaction- 

 Power of resisting desiccation Laboratory work. . . p. 25 29. 



