CONTENTS. XVli 



CHAPTER IV. ROTS 508 



Black rot of cabbage. Wakker's hyacinth disease. Basal stem rot of potatoes. Soft 

 rot of calla lilly. Soft rot of carrot and other vegetables. Soft rot of hyacinth. Soft 

 rot of muskmelon. Soft rot of the sugar beet. 



CHAPTER V. WILTS 515 



Wilt of cucurbits. Leaf disease of nasturtium. Wilt of sweet corn. Wilt of 

 tomato, egg plant, Irish potato, and tobacco. Additional bacterial diseases. 



DIVISION VII. MICROBIOLOGY OF THE DISEASES OF MAN AND ANIMALS. 



CHAPTER I. METHODS AND CHANNELS OF INFECTION (McCampbell) 520 



Infection defined. Microorganisms of diseases considered and classified, Patho- 

 genic bacteria, pathogenic protozoa, ultra-microscopic microorganisms or viruses. 

 The distribution of pathogenic microbial agents in nature. The occurrence of 

 pathogenic microbial agents upon and in the bodies of healthy animals and man. 

 The manner in which infectious agents enter the body and their sources, Air- 

 borne infections, water-borne infections, infections from soil, infections from food, 

 animal carriers of infection, human carriers of infection, contact infection, The 

 routes by which infectious microorganisms enter the body. Variation in infec- 

 tions. The factors which influence the results of an infection, Virulence, num- 

 ber, avenue, resistance. The exact cause of infections, Soluble toxins, endo- 

 toxins, toxic bacterial proteins. The methods by which infectious microorgan- 

 isms are disseminated. The methods by which infectious microorganisms are 

 eliminated from the body. The effect of infectious microorganisms upon the 

 body, The period of incubation, local reactions, general reactions, metabolism, 

 blood-forming organs, parenchymatous tissues, ^pithelial and endothelial tissues, 

 erythrocytes and leucocytes, antibody formation. 



CHAPTER II. IMMUNITY AND SUSCEPTIBILITY (McCampbell) S4i 



General, Definition, hypersusceptibility or anaphylaxis, predisposition and non- 

 inheritance of infectious diseases. Immunity, Natural immunity and susceptibility 

 (racial immunity and susceptibility, familial immunity and susceptibility, individual 

 immunity and susceptibility). Factors of natural immunity (the protection 

 afforded the body by the surfaces, skin and cutaneous orifices, subcutaneous 

 tissue, the exposed mucous membranes of the body, nasal cavity, mouth, lungs, 

 stomach, intestines, genito-urinary tract, conjunctiva, the protective nature of 

 inflammatory processes, natural antitoxins, natural antibacterial substances, 

 normal hemolysins, normal agglutinins, normal precipitins) , acquired immu- 

 nity, (active immunity, passive immunity). The origin and occurrance of anti- 

 bodies, Antitoxins, (the mechanism of the neutralization of toxin by antitoxin, 

 unit of anti-toxin), lysins and bactericidal substances j (the structure of lysins, 

 deviation of complement, the fixation of the complement as a test for anti-bodies), 

 cyto-toxins and cyto-lysins, opsonins and phagocytosis, (opsonic index, hemo-opso- 

 nins), agglutinins (normal agglutinins, the production of agglutinins, the sub- 

 stances concerned in agglutination, structure of agglutinins and agglutinogens, 

 agglutinoids, the stages of agglutination, hemoagglutinins) , precipitins (normal 

 precipitins, mechanism of the formation of precipitins, autoprecipitins and? iso- 

 precipitinS^-the phenomena of specific inhibition, antiprecipitins, the precipitinogen, 

 precipitate, coprecipitins, the forensic use of precipitins). The theories of immu- 

 nity, Noxious retention theory, exhaustion theory, phagocytic theory, Ehrlich's 

 side-chain theory. 



CHAPTER III. MICROBIAL DISEASES OF MAN AND ANIMALS 576 



Diseases caused by molds and yeasts (various authors). Pneumomycosis (Thorn), 

 thrush (Thorn), Dermatomycoses, Barbers itch, etc., (Thorn), favus (Thorn). 

 Miscellaneous fungus diseases (Thorn), actinomycosis (Reynolds), mycetoma, 



