Section I 



PahtII 



An 

 Introduction 



TO 



NEMATOLOG\ 



7 



B. G. Chilwood ac M B. Chitwood 

 Babylon, N. Y. 



NATHAN AUGUSTUS COBB 

 18S9-I932 



Born in Spencer, Ma««.; B. Sc. Worcester 

 Polytechnic Institute (1881); Instructor in 

 chemistry and natural history at Williston 

 Seminary, Easthampton, Mass. (1881-1887); 

 Ph. D. University of Jena (1888); Investi- 

 gator at Naples Zoological Station (1888); 

 commercial advertiser at Sydney, N. S. 

 Wales (1889); temporary professor of zo- 

 ology in University of Sydney (1889-1890); 

 pathologist. Department of Agriculture, 

 N. S. Wales (1891-1901); special commis- 

 sioner on Agriculture for N. S. Wales, visit- 

 ing Europe and United States (1901-1904); 

 director. Division of Physiology and Path- 

 ology, Hawaiian Sugar Planters' Experiment 

 Station (190S-1906); Agricultural Technolo- 

 gist, U. S. Department of Agriculture ( 1907- 

 1928); Principal Nematologist, U. S. De- 

 partment of Agriculture (1929-1932). 



Plant pathologist, parasitologist, inven- 

 tor, nematologist, ornithologist; crystallog- 

 rapher, poet, romanticist and dramatist of 

 nematology. 



From Coob. lOlti. 



C*»yrl|hl, 1938. by M. B. Cklti>;oi 



