GENERAL MORPHOLOGY AND PHYSIOLOGY OF BACTERIA. 



FIG. 5. Illustrating the general morphology of Coccaceae. a, b, micrococci (a) differing 

 in size, showing chain formation or streptococci (b);c, diplococcus; d, diplococcus;e, tetra- 

 coccus;/, gelatinized tetracoccus; g, gelatinized diplococcus. 



FIG. 6. General morphology of Bacteriaceae. a, b, c, d, bacilli differing in size and 

 orm; c, shows curved bacilli like those of Asiatic cholera; e, hay bacillus (B. subtilis); 

 /, Y-shaped or branched bacilli, as of clover root nodules; g, drum-stick (Trommelsch lager) 

 bacilli, as of tetanus form due to the enlarged endospores. 



