xviii LIST OF ILLUSTRATIONS. 



FIG. PAGE 



42. Muencke's modification of Chamber-land's filter 77 



43. Flask for filtering large quantities of fluid 77 



44. Tubes for demonstrating gas-formation by bacteria 79 



45. Hill's modification of Smith's fermentation tube 80 



46. Geryk's air-pump for drying in vacua . . . . . . .81 



47. Reichert's gas regulator 83 



48. Hearson's incubator for use at 37 C 84 



49. Cornet's forceps for holding cover-glasses 89 



50. Stewart's cover-glass forceps 89 



51. Needle for manipulating paraffin sections 94 



52. Syphon wash-bottle .98 



53. Tubes used in testing agglutinating and sedimenting properties of serum . ill 



54. Test-tube and pipette for obtaining fluids containing bacteria . . . 113 



55. Apparatus for holding mouse preparatory to subcutaneous inoculation . 118 



56. Hollow needle for intraperitoneal inoculations .119 



57. Hesse's tube 124 



58. Petri's sand filter .125 



59. Sedgwick-Tucker aerobioscope -125 



60. Apparatus for collecting water samples 133 



61. Forms of fungi 150 



62. Blastomyces dermatitidis, showing organism with doubly-contoured mem- 



brane, x 1000 153 



63. Blastomyces dermatitidis, showing budding form of organism. X 1000 . 153 



64. Blastomyces dermatitidis, sporulating form in abscess cavity . . 154 



65. Staphylococcus pyogenes aureus, young culture on agar. X 1000 . .183 



66. Two stab-cultures of Staphylococcus pyogenes aureus in gelatin . . 183 



67. Streptococcus pyogenes, young culture on agar. x 1000 . . . .185 



68. Culture of the streptococcus pyogenes on an agar plate . . . .185 



69. Bacillus pyocyaneus, young culture on agar. x 1000 . . . .186 



70. Micrococcus tetragenus. x 1000 .187 



71. Film preparation of exudation from case of meningitis, showing the diplo- 



cocci within leucocytes .188 



72. Streptococci in acute suppuration, x 1000 . . . . . . 193 



73. Minute focus of commencing suppuration in brain. X 50 . . . . 195 



74. Secondary infection of a glomerulus of kidney by the Staphylococcus 



aureus. x 300 196 



75. Section of a vegetation in ulcerative endocarditis 198 



76. Film preparation of conjunctival secretion, x 1000 201 



77. Film preparation of pneumonic sputum, x 1000 208 



78. Friedlander's pneumobacillus, from exudate in a case of pneumonia. 



X 1000 209 



79. Fraenkel's pneumococcus in serous exudation, x 1000 .... 209 



80. Stroke-culture of Fraenkel's pneumococcus on blood agar . . . .210 



81. Fraenkel's pneumococcus from a pure culture on blood agar of twenty-four 



hours' growth, x 1000 211 



82. Stab-culture of Friedlander's pneumobacillus 212 



83. Friedlander's pneumobacillus from a young culture on agar. x 1000 . 212 



84. Capsulated pneumococci in blood taken from the heart of a rabbit. 



X 1000 215 



