PRINCIPAL REFERENCES 



The Author regrets that his transfer to a situation with more limited 

 library facilities has prevented the preparation of a complete list of the 

 sources to which acknowledgment is due. The following list is intended 

 for the direction of readers to some of the principal papers dealing with 

 the subject concerned. 



CHAPTER I. NOTABLE GROUPS CONCERNED IN FUNGUS 



DISEASES. 

 Duggar, B. M. Rhizoctonia. Fungous Diseases of Plants, pp. 444-452. 

 Duggar, B. M. Rhizoctonia crocorum (Pers.) D.C. and R. solani Kiihn 



(Corticium vagum, B and C). Ann. Missouri Bot. Gard. II, 



pp. 403-458. 1915. 

 Petch, T. On Lasiodiplodia. Ann. Roy. Bot. Gard. Ceylon, IV. p. 445. 



1910. 

 Peltier, G. L. Illinois Agr. Exp. Sta. Bull. 189 (1916). Rhizoctonia. 

 Stevens, G. L. The genus Meliola in Porto Rico. Illinois Biol. Monographs 



II. iv. (1916). 



CHAPTER II. DISEASES CAUSED BY BACTERIA. 



Smith, E. F. Bacteria in relation to Plant Diseases. Vols. I — III. 



Bacterial Diseases of Plants. 1920. Carnegie Institute, Washington. 



CHAPTER III. DISEASES CAUSED BY INFECTIVE VIRUSES. 

 Allard, H. A. Papers on Mosaic Disease. Jrn. of Agric. Res. Ill, 295 ; 

 V, 251 ; VI, 649 ; X, 615 ; XIII, 619. 



CHAPTER V. DISEASES DUE TO NEMATODES. 



Butler, E. J. The Rice Worm and its Control. Mem. Dept. Agric. India 



X, i. (1919). 

 Taylor, A. M. Black Currant Eelworm. Jrn. Agric. Sci. VIII, 246. 1917. 



CHAPTER VI. THE RELATION OF INSECTS TO PLANT DISEASES. 

 Pierce, W. D. and Rand, F. V. A Co-ordination of our Knowledge of 



InsectTransmission in Plant and Animal Diseases. Phytopathology X. 



p. 190. 



CHAPTER VIII. ENTOMOGENOUS FUNGI. 



Morrill, A. W. and Back, E. A. Natural Control of White Flies in Florida. 



U.S. Dept. Agr. Bur. Ent. Bull. 102. 1912. 

 Johnston, J. R. The Entomogenous Fungi of Porto Rico. Bd.ofCommrs. 



of Agr. P. R. Bull. 10. 



CHAPTER X. FUNGICIDES AND THEIR APPLICATION. 

 Butler, O. Bordeaux Mixture. Phytopathology IV, 125. 1914. 



The Cuprammonium Washes. Phytopathology VII, 235. 191 7. 

 Thomas, C. C. Seed Disinfection by Formalin Vapour. Jrn. Agric. Res 



XVII, 33. 



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