CONTENTS 



IX 



Exercises Page 



LVII. Determining the efficiency of disinfectants . . . 1 1 1 



LVIII. Testing disinfectants (continued) 113 



LIX. Pasteurizing and sterilizing milk .... 114 



LX. The quantitative bacteriologic examination of water . 116 



LXI. The quantitative examination of water (continued) . 1 18 



LXII. The qualitative examination of water . . . • 119 



LXIII. The quahtative examination of water (continued) . 120 



LXIV. Examination of certain bacteria not studied in the • 



laboratory ......... 121 



APPENDIX 



I. Reaction of culture media 



II. The ocular micrometer and micrometry 



III. Animal inoculation for purposes of diagnosis 



IV. Cultivation of Bacterium (^Bacillus) tuberculosis 

 V. Jeffer's plate and metric system . 



123 

 128 

 132 

 137 

 139 



