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zations in the enforcement of crop pest and nursery inspection laws, 
the number of persons officially engaged in work pertaining to insect 
control would be easily doubled. 
Investigations in economic entomology are made leading lnes of 
work in 43 out of 48 of the agricultural experiment stations, and this 
subject is taught in practically as many of the agricultural colleges. 
Much valuable work is being done by several of the State departments 
of agriculture and State boards of horticulture. In the Bureau of 
Entomology of the United States Department of Agriculture the 
force now engaged in strictly entomological work numbers 59 as com- 
pared with 14 under the division organization of 1900. 
The increase in workers has naturally been dependent on an 
increased financial support. At no previous time has so large a sum 
of money been devoted to the study of injurious insects. The sum 
total of money annually devoted to work of this character may be only 
approximately indicated, for separate accounts are not kept in most 
of the agricultural colleges and experiment stations of the money 
spent in entomological research. However, from actual figures, in 
many cases, and from conservative estimates, [ would place the 
amount at not less than $285,000. This, of course, does not include 
special appropriations, as, for instance, that by the Federal Govern- 
ment of $250,000 for work against the boll weevil and other cotton 
insects and diseases, the $25,000 appropriated by the State of Loui- 
siana for the same purpose, and notable emergency appropriations 
of the past, such as that for the evpsv moth. 
Viewed from a business standpoint, it 1s pertinent to inquire what ° 
economic entomology has done in the way of returns in dollars and 
cents for the money invested by the pubic. A balance sheet which 
would show the present status of the account and be even approxi- 
mately correct can not be prepared, owing to the difficulty of accu- 
rately estimating the credits. We can, however, make estimates so 
well within the bounds of reason as to run no possible risk of over- 
stating the case. I have therefore gone over the literature with a 
view to deciding how far economic entomology has been instrumental 
in increasing the output of some of our staple crops and fruits. The 
original estimates were cut in half, and there still remains a-credit 
sufficiently large to satisfy the ideas of profit of some of our present- 
day multimillionaire corporations. 
The following table shows the value of certain classes of crops in 
the United States for the year 1899, as reported in the Twelfth Cen- 
sus, with the estimated benefits resulting from the teachings of 
economic entomology stated in percentage and also in dollars and 
cents. The writer believes this to be a most conservative estimate of 
