4 CONTENTS. 



CHAPTER XXIII. Morphology, Kinds, and Products. . 145 



CHAPTER XXIV. Size, Numbers, and Distribution. . . 149 

 CHAPTER XXV. Cultivation and Systematic Study of 



Bacteria 151 



CHAPTER XXVI. Microscopic Technique 156 



CHAPTER XXVII. Non-Pathogenic Bacteria 160 



CHAPTER XXVIII. Pathogenic Bacteria 164 



CHAPTER XXIX. Toxins, Immunity, Germicides, etc. . 170 



PART 4. URINALYSIS. 



CHAPTER XXX. Physical, Chemical, and Microscopic 



Urinalysis 172 



