INUEX. 



2til 



HANGING -DROP prepara- 

 tions, 108 

 Henle, 17 

 Hoffmann, 19 

 Hypodermatic needles, 156 

 syringes, 158 



TNCUBATOES, 91-93 



1 Indol, its production by bac- 

 teria, 120 

 method for detecting its pres- 

 ence, 120, 121 



Introduction, 13 



T EEUWENHOEK'S discover- 

 h ies, 13-15 



Lens for counting colonies, 183 

 Levelling tripod, 84 

 Loffler's blood-serum mixture, 

 75, 76 



M 



EDIA, 59-76 

 agar-agar, 65-67 



clarification of, 65, 66 

 filtration of, 66 

 solution of, 65, 66 

 blood-serum, 69-74 



precautions in obtain- 

 ing, 69, 70 

 preservation of, 73, 74 

 solidifying, 71-73 

 sterilization of, 71 

 bouillon, 59 



neutralization of, 59-61 

 gelatin, 62-65 



clarification of, 63, 64 

 filtration of, 63 

 neutralization of, 62 

 meat infusion, 76 

 potatoes, 67-69 



for test-tube cultures, 68 

 special, 74-76 



agar-gelatin of Guarni- 



ari, 76 

 blood-serum mixture of 



Lofller, 75 

 Dunham's peptone solu- 

 tion, 75 



Media, special: Dunham's pep- 

 tone solution, with ro- 

 solic acid, 75 

 milk, 74 



as a solid medium, 



74, 75 

 with litmus, 74 

 Micrococci, 29 



Micrococcus of sputum septicae- 

 mia, 194-197 

 tetragenus, 197 



animals susceptible to, 



200 

 description of, 198-200 

 results of inoculation 

 with, 197 

 Microscope, 105-107 



adjustment, coarse, 106 



fine, 106 

 condenser, sub-stage, 106 

 immersion system, oil, 106 



steps in using, 107 

 objective, 105 

 ocular, 105 

 reflector, 106 

 stage, 106 

 Microtome, 142 

 Mouse-holder, 152, 153 



ATEEDHAM, 18 

 ri Nitrites, 121 



ii AESE,;' platinum, 82 



\J Oil-immersion system, steps 

 in using, 107 

 Ozanam, 17 



PARASITES, 22 

 r Pasteur, 17-19 

 Pasteur and Chevreul, 19 

 Peptone solution, Dunham's, 75 



-rosolic-acid solution, 75 

 Petri's dish, 87 



modification of Koch's meth- 

 od, 86 

 Plates, technique of making, 81 

 Platinum needles, loops ("oese"), 



81, 82 

 Plenciz, 16 



