CONTENTS xi 



Micrococcus desidens Sarcina alba Sarcina Candida Sarcina 

 aurantiaca Sarcina rosea Sarcina lutea Staphylococci - 

 Staphylococcus pyogenes aureus ; albus ; citreus Streptococci 

 Bacillus subtilis Bacillus prodigiosus Potato Bacillus Bacillus 

 mesentericus f uscus ; ruber ; vulgatus Bacillus liodermos - 

 Bacillus melochloros Bacillus multipediculosus Bacillus nea- 

 politanus Atmospheric Spirilla ....... 90 



CHAPTER VI 



THE BACTERIOLOGICAL ANALYSIS OF WATER 



MICRO-ORGANISMS OF WATER Filtration and Filters Variations in 



Water Depending on Source Examination of Water .Pfuhl's 



Method Kirchner's Method Other Methods Micrococcus aqua- 

 tilis Micrococcus agilis Micrococcus fuscus Micrococcus luteus 

 Micrococcus aurantiacus Micrococcus fervidosus Micrococcus 

 carneus Micrococcus concentricus Diplococcus luteus Bacillus 

 tiuorescens liquefaciens and Bacillus nivalis (Glacier Bacillus) 

 Bacillus fluorescens non-liquefaciens Bacillus Erythrosporus 

 Bacillus arborescens Bacillus violaceus Bacillus gasoformans 

 Bacillus phosphorescens (indigenus ; indicus) Bacillus ramosus 

 Bacillus aurantiacus Bacillus aureus Bacillus bruneus Ba- 

 cillus aquatilis Bacillus aquatilis sulcatus Bacillus aquatilis 

 radiatus Bacterium Ziirnianum Bacillus membranaceus ame- 

 thystinus Bacillus indigoferus Bacillus ianthinus Bacillus 

 ochraceus Bacillus gracilis Bacillus sulphydrogenus Bacillus 

 of Asiatic Cholera and Allied Micro-organisms Vibrio proteus 

 Vibrio Metschnikoffi Bacillus of Typhoid Fever Bacterium Coli 

 commune Spirilla in Water Other Micro-organisms of Water . 122 



CHAPTER VII 



BACTERIOLOGICAL ANALYSIS OF EARTH AND OF PUTRE- 

 FYING SUBSTANCES 



MICRO-ORGANISMS IN THE SOIL Method of Examination Bacillus 

 mycoides (Earth Bacillus) Bacterium mycoides roseum Bacillus 

 radiatus Bacillus spinosus Bacillus liquefaciens magnus 

 Bacillus scissus Glostridium foetidum Bacillus cedematis ma- 

 ligni Bacillus of Tetanus Streptococcus septicus Bacillus An- 

 thracis Plasmodium Malariae Other Micro-organisms of the 

 Soil. ANALYSIS OF PUTREFYING SUBSTANCES Differences in Putre- 

 factive Processes Bacillus fuscus limbatus Proteus Proteus 

 vulgaris Zenkeri Mirabilis Hominis Capsulatus Bacillus 

 saprogenes Spirillum concentricum Spirillum rubrurn . . 155 



