14 LIST OF ILLUSTRATIONS. 



37. Thermo-reg-ulator (F. G. N.) 246 



38. Murrill's gas pressure regulator 250 



39. Koch's safety burner / 251 



40. Adjustable syringe. 262 



41. Syringe and holder, water-bath and radial burner 263 



42. Injection apparatus 264 



43. Sterile conical test-glass 265 



44. Voges' cylindrical holder .' 266 



45. Latapie's animal holder. 268 



46. Rat cage and forceps 273 



47. Vaughan's cage for rabbits, etc 274 



48. Instrument sterilizing case and searing iron 275 



49. The Roux spatula and Nuttall needle 278 



50. Simple bottle for anaerobes (F. G. N.) 308 



51. Bottle for tube culture of anaerobes (F. G. N.) 314 



52. Apparatus for plate cultivation of anaerobes (F. G. N.) 314 



53. Apparatus for plate cultivation of anaerobes (F. G. N.) 314 



54. Tube culture of tubercle bacillus on potato (F. G. N.). . 315 



55. Yeast cells with spores (Hansen) 387 



56. Fruit-organs of moulds (Lehmann) 390 



57. Wolff hugel's counter 434 



58. Laf ar's and Jeffer's counters 436 



59. Esmarch's roll- tube counter 448 



60. Apparatus for the examination of air 454 



61. Drawn-out tube pipettes of Pasteur 457 



62. Sealing cultures in capillaries 459 



63. Pipette used in drawing blood 460 



64. Roux water-bath for serum sterilization ." 466 



65. Koch's serum sterilizer 467 



66. Apparatus for filtering bacterial liquids (F. G. N.) 469 



67. Connections for filtering apparatus (F. G. N.) 470 



68 Berkefeld filter; globe receiving flask (F. G. N.) 471 



69. Roux flask for surface cultures 486 



70. Rolling of collodium sacs 497 



71. Collodium sacs 499 



72. Tubing of media (F. G. N.) 511 



73. Keeping of cultures (F. G. N.) 512 



74. Filter for bacterial suspensions 514 



75. Determination of the thermal death-point (F. G. N.). . . 516 



76. Formaldehyde apparatus for room disinfection (F. G.N) 530 



