PREFACE. 
The volume now issued as the Second Report on Economic /oology 
contains a large part of the information furnished by the Director 
of the Natural History Departments of the British Museum to the 
Board of Agriculture and Fisheries between November, 1902, and 
November, 1903. It also contains the replies given by the Zoological 
Department to other correspondents in connection with Economic 
Zoology, as well as special notes and some longer papers dealing with 
the subject. 
Mr. Frederic V. Theobald has carried on the whole of this work 
and drawn up the Reports now printed. He has been assisted in 
preparing certain replies to the Board and to other correspondents 
by Messrs. C. 0. Waterhouse, M. R, Oldfield Thomas, F.R.S. and 
R. I. Pocock, of the Staff of the Zoological Department of the Museum. 
Mr. C. 0. Waterhouse has carefully read the proof-sheets of the 
present volume. 
Special acknowledgments are due to those naturalists not on the 
Staff of the Museum who have assisted Mr. Theobald in accomplishing 
the work set forth in these Reports. To Mr. Robert Newstead we are 
indebted for valuable help in naming insects of the family Coccidse, 
on which he is the leading authority, as also for his share in the 
paper on Egyptian Scale Insects (p. 185), which is mainly from his 
pen. Mr. Albert Michael, Mr. Distant, Dr. Nalepa, of Vienna, 
Professor L. 0. Howard, of Washington, and Professor Neumann, of 
Toulouse, have also, in their several specialities, given us kind and 
valuable assistance. 
The amount and variety of the work which it has been 
Mr. Theobald’s duty to put through have been very large, whilst the 
energy and ability which he lias brought to bear on the task deserve 
special recognition and appreciation. 
