V 
PREFACE. 
considerable importance to bush-fruit growers. To my good 
friends Dr. de Man, of Middleburg, and Dr. J. Ritzema Bos, of 
the Royal Agricultural College, Wageningen, Netherlands, I am 
again, as in previous years, indebted for kind assistance in 
identification and study of crop Eelworms ; and to Dr. de Man 
more especially for the notes and beautiful figure (see pp.76—79) 
of a species previously unobserved as infesting Oats. 
To Dr. C. Lindeman, Prof, a l’Academie Agricole, Moscow, 
I am also much indebted for useful information regarding 
Hessian Fly; and likewise offer my best thanks to Dr. J. A. 
Lintner, State Entomologist of New York State, for prompt and 
full reply regarding a cattle fly (called the “Texan” or Horn 
Fly) newly observed in the U. S. A., which at the time appeared 
likely enough to be an additional trouble here. 
Amongst unfailing colonial correspondents who by letter or 
publications aid me greatly, I beg specially to thank Mr. Frazer 
S. Crawford, Inspector under the Vine and Fruit &c. Protection 
Act, at Adelaide, S. Australia, and Mr. Albert Molineux, 
Member of the Royal Agricultural and Horticultural Society of 
S. Australia; and in England I should also mention the help 
kindly given me by Mr. R. H. Meade, of Bradford, in confirming 
my identification of Diptera, and also by Mr. 0. E. Janson, 
London, in identifying species which I had not the opportunity 
of myself comparing with type specimens. 
It is beyond my power duly to reciprocate the valuable 
donations of entomological books kindly sent me by their writers, 
especially from Canada and the United States. I can but 
express my hearty thanks for the valuable gifts, and especially 
to Prof. Saunders, Director of the Experimental Farm Stations, 
and to Mr. J. Fletcher, Entomologist of the Dominion of 
Canada; and likewise to Prof. Riley, Entomologist to the 
Department of Agriculture of the United States ; but I may add 
that, whilst I always endeavour to forward a copy of my Yearly 
Report, on publication, to each of those who have kindly 
contributed and aided me, I should take it as a favour in case it 
does not reach them if they would let me know, as sometimes I 
am afraid copies have not been duly received. 
I have also gratefully to acknowledge the kindly and 
important aid constantly given me by the co-operation of the 
Agricultural Journals, and often by that of the general Press. 
