CONTENTS. XIU 



PAGE 



Poisons and other Members of this Group— Mussel Poisons : 

 two Classes, viz., those Without Oxygen and those Con- 

 taining Oxygen — Ptomaines the Result of the Activity of 

 Micro-organisms — Ixiiifler's Experiments on Diphtheria 

 Poison, an Enzyme — Roux and Yersin's Diastase — Hankin, 

 Albumose — Brieger and Fraenkel, Toxalbumen — Method 

 of Preparation of Albumoses and of Toxalbumens — Near 

 Relationship of Proteid Poisons and the Ptomaines — Martin's 

 Observations. 



CHAPTER XXII. 



Vaccination - . 368-380 



Natural Immunity — Ingrafting of Small-pox — ^Jenner's Discovery 

 — Klebs — Pasteur — Chauveau — Grawitz's Theory — Buchner's 

 Theory — Metschnikoff's Work — Greenfield's Observations 

 on Anthrax— Toussaint's Vaccinal Fluid — Pasteur's Classical 

 Experiments — Other Methods of Diminishing Virulence — 

 Chauveau's Soluble Poison Experiments — Protection by 

 Alkaloids, Albumoses and Toxalbumens — Saprophytic 

 " Anthrax " — Hueppe and Wood — Antagonism by Blue-pus 

 Products — Immunity not the same as Antagonism — Sum- 

 mative Action of Bacteria. 



CHAPTER XXIII. 



Bacteria in Air, Earth, and Water 381-396 



Spores in the Air in Hospitals — Effects of Currents and Altitude — 

 Direction of Wind — Nature of Country over which it passes 

 — Frankland's, Carnelley's, Haldane's and Petri's Experi- 

 ments — Few Bacteria in the Air of Sewers — Tyndall's 

 Glycerine Chamber — Examination of Air — Koch's Method — 

 Miquel's Method — Hesse's Apparatus — Modified Hesse's 

 Apparatus — Miquel's Sugar Method — Bacteria in Water — 

 Effect of Standing — Sluggish Movement — Oxidation of Or- 

 ganic Matter in Water — Organisms carried by Sewage — 

 Number of Organisms in Water — Method of Procedure in 

 Analysing Water — Pfuhl's Flasks — Petri's Dishes — Pe- 

 , triischky's Flask — Plate Cultivations — Cooling Apparatus — 

 Von Esmarch's Tube Cultures — Kfifect of Rains, Frosts and 

 Thaws — Relation of Bacteria to Ammonia — Basis on which 

 to determine whether Water is fit for Drinking or not — 

 Filtration — Method of Examination of Soil. 



Appendix 397-442 



Indices - - 443-4S9 



