Skctiox TI. 



Part II. 



An 



Intkodlhtion 

 To 



NEMATOLOGY 



J. R. CHRISTIE 



Editor 



nail' 



ALBERT HASSALL 



Born in Woolwich, Kent, England. M. R. C. V. S., Royal College of Veter- 

 inary Surgeons London, 1886. Inspector, 1887-1905; Assistant in Zoology, 1905- 

 1910; Assistant Zoologist, 1910-1922; Associate Zoologist, 1922-1924; Zoologist, 

 1924-1925; Senior Zoologist and Assistant Chief of Zoological Division, 1925- 



1932; Collaborator, 1934- ; Bureau of Animal Industry, U. S. Department of 



Agriculture. 



Zoologist, biblographer, author of numerous papers in parasitology, compiler 

 of Index Catalogue of Medical and Veterinary Zoology published in collaboration 

 with Stiles. Nematologists' best friend and severest critic. 



