CONTENTS- 
SECTION I. 
GENERAL BACTERIOLOGY 
Introduction— The Development and Scope of Bacteriology . . 17 
CHAPTER I. 
The Morphology of Bacteria. 
A. Normal Forms: Cocci, Bacilli, Spirilla 22 
Cocci 22 
BacilU 23 
SpiriUa 23 
B. Abnormal Forms: Variation, Degeneration and Involution, Pleomor- 
phism and Branching 24 
Variation 24 
Degeneration and Involution 24 
Pleomorphism 24 
Branching 25 
C. Size and Weight of Bacteria 25 
Size 25 
Weight of Bacterial CeU 26 
D. Structure and Constituents of the Bacterial Cell 26 
1. Cell Membrane 27 
Ectoplasm 27 
Zooglea 27 
2. Cell Substance 27 
C3i;oplasm 27 
Nucleus 28 
Metachromatic Granules 28 
Flagella 29 
Spores 30 
Arthrospores 31 
E. Reproduction and Cell Division 31 
F. Cell Grouping 32 
G. Classification of Bacteria 33 
Relation to Higher Plants 33 
H. Mutation: Constancy of Types 34 
CHAPTER II. 
General Physiology of Bacteria— The Effect of Environment on Bacteria. 
A. Rate of Reproduction 36 
B. Motility: Rate of Motion 37 
C. Sporulation: Germination of Spores 37 
D. Longevity 39 
