CONTENTS. 13 



PACK 



APPENDIX I. Actinomycetes 383 



1. Corynebacterium 383 



2. Mycobacterium 410 



3. Actinomyces 438 



APPENDIX II. Higher Fission-fungi (Spaltalgen) 457 



1. Leptothrix 458 



2. Beggiatoa 461 



3. Crenothrix 463 



4. Cladothrix 465 



APPENDIX III. Notes upon Diseases, Insufficiently Elucidated, 



but Probably due to Bacteria 467 



APPENDIX IV. Essentials of Bacteriologic Technique 474 



I. Microscopic Examination 474 



II. Cultivation of Bacteria 482 



III. Animal Experiments 489 



APPENDIX V. Brief Guide to the Recognition of Bacteria, 



with an Example 490 



INDEX 495 



SUMMARY OF BIOLOGIC PROPERTIES OF VARIETIES PRE- 

 SENTED , . . . Table 



