6 
time is so fully occupied otherwise that I can do 'little or nothing at 
present in the way of identification of species or of comparing Dr. Neal’s 
results with those of European investigators, which, as a matter of fact, 
are of little practical importance. The study of the full life history of 
any one of the species is attended with much difficulty, and will re- 
quire much time in field and laboratory ; while the technical and clas- 
siticatory treatment of the subject should be undertaken by some com- 
petent helminthologist. 
O. V. R. 
