vi DISEASES OF TROPICAL PLANTS 



their own peculiar problems ; and it is too much to expect 

 of any one person that he should be familiar with all of 

 them. In this connection the writer wishes to say that 

 his own experiences have been restricted entirely to the 

 American tropics. 



This work is intended primarily for the planter ; but 

 it is hoped that it may be of some service to the 

 student. The writer fully appreciates its many defects, 

 and earnestly solicits correspondence with and sugges- 

 tions from botanists and plant pathologists throughout 

 the tropical world. 



The author is deeply indebted to Prof. F. S. Earle 

 and Prof. W. T. Home for reading the manuscript and 

 for valuable suggestions ; to Dr. Haven Metcalf for a 

 discussion of the diseases of rice ; to Profs. E. A. Butler, 

 H. S. Fawcett, C. W. Edgerton, H. R. Fulton, J. J. 

 Taubenhaus, and R. E. Smith for illustrations ; to Prof. 

 C. A. M'Cue for valuable suggestions ; to Messrs. G. W. 

 Martin and G. W. Wilson for reading proof, and to many 

 others who gave more or less assistance in many ways. 



RUTGERS COLLEGE, 



NEW BRUNSWICK, N.J., 



February 22, 1913. 



