CONTENTS XIX 



DIVISION VI.— Microbial Diseases of Plants (Sackett) 



Introduction . . ... 588 



CHAPTER I.— Blights. . ^ ■ . SQO 



Stem blight of alfalfa. — Bacteriosis of beans. — Blight of lettuce. — Blight of mulberry. 

 — Blight of oats. — Stem blight of field and garden peas. — Peaa* blight. — Streak dis- 

 ease of sweet peas and clovers. — -Tomato blight. — Walnut blight. 



CHAPTER II. — Galls and Tumors 605 



Crown gall. — Olive knot. — Fingers and toes of cabbages (Todd, revised by 

 Tyzzer). — Tuberculosis of sugar beets. 



CHAPTER III.— Leaf Spots ... . . ... . . 612 



Citrous canker. — Angular leaf-spot of cucumbers. — Leaf-spot of the larkspur. — 

 Bacterial spot of plum and peach. — ^Leaf spot of sugar beet. 



CHAPTER IV— Rots . . . 617 



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

 Biid rot of cocoanut.— Brown rot of orchids.— Rot of cauliflower. — Soft rot of calla 

 lily. — Soft rot of carrot and other vegetables. — Soft rot of hyacinth. — Soft rot of 

 muskmelon. — Soft rot of the sugar beet. 



CHAPTER v.— Wilts ... .... . 627 



Wilt of cucurbits. — Wilt of sweet corn. — Wilt of tomato, egg plant, Irish potato, and 

 tobacco. — Additional bacterial diseases. 



DIVISION VII. — Microbial Diseases of Insects (Northrup) . . 632 



Introduction. — Miscellaneous insect diseases, — Saprolegniaceae, Entomophthor- 

 aces, and Entomogenous fungi (Thom). — Bacterial disease of June Beetle larvae, 

 Lachnosterna spp. — -Flacherie (silk worm). — Bacterial disease of locusts. — Bacillary 

 septicasmia of caterpillars, Arctia caja. — Graphitosis. — American foul brood. — Sep- 

 ticaemia of the cockchafer, Melolontha vulgaris. — European foid brood. — Bacterial 

 septicaemia of larvae of the LamellicorniB. — Bacterial disease of the gut-epithelium of 

 the lug-worm, Arenicola, ecaudata, — Sacbrood of bees. — Wilt disease or flacherie of 

 the gipsy moth caterpillar, Porthetria dispar. — Pebrine, 



DIVISION VIII. — Microbiology of the Diseases of Man and Domestic 



Animals 



CHAPTER I. — Methods and Channels of Infection (McCampbell) 659 



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

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

 the distribution erf pathogenic microbial agents in nature. — The occurrence of patho- 

 genic microbic agents upon and in the bodies of healthy atumals and man. — The 

 manner in which infectious agents enter the body and their sources, — -Air-borne infec- 

 tions, dust infections, droplet 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 infections. — The factors which influence the results of an infection, — 

 Virulence, number, avenue, resistance. — The exact cause of infections, — Soluble tox- 

 ins, endotoxins, toxic bacterial proteins, other possible exact causes. — The methods 

 by which infectious microorganisms are disseminated. — The methods by which in- 

 fectious microorganisms are eliminated from the body. — The effect of infectious 

 microdrganisms upon the body,— The period of incubation, local reactions, general 

 reactions (metabolism, blood-forming organs, parenchymatous tissues, epithelial and 

 endothelial tissues, erythrocytes and leucocytes, antibody formation). 



