SYMPTOMS OF DISEASE (SYMPTOMATOLOGY) 353 



The wet rot of potatoes is probably due to putrefactive bacteria. The 

 tissues become soft, then mushy, and finally become a liquid mass with 

 a vile smell. 



BIBLIOGRAPHY OF PLANT DISEASES IN GENERAL 



Heald, Frederick D.: Symptoms of Disease in Plants. Bull. 135, Universityof 



Texas, Nov. 13, 1909. 

 KxEBAHN, Prof. Dr. H.: Grundziige der allgemeinen Phytopathologie. Berlin 



Gebriider Borntraeger, 191 2. 

 KtJSTER, Dr. Ernst: Pathologische Pflanzenanatomie. Gustav Fischer in Jena, 



1903, Zweite Auflage, 1916. 

 KtJSTER, Dr. Ernst: Pathological Plant Anatomy. Authorized translation by 



Frances Dorrance, 1913-1913- 

 Smith, John B.: Economic Entomology for the Farmer and Fruit Grower, and for 



Use as a Text-book in Agricultural Schools and Colleges, J. B. Lippincott Co., 



1896. 

 Stengel, Alfred: A Text-book of Pathology, W. B. Saunders Co., Philadelphia, 



1906. 

 Ward, H. Marshall: Disease in Plants, Macmillan Co., & 1901. 



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