JOURNAL 
OF 
ECONOMIC ENTOMOLOGY 
OFFICIAL ORGAN AMERICAN ASSOCIATION OF ECONOMIC ENTOMOLOGIST 
Vol. 17 APRIL, 1924 No. 2 
Proceedings of the Thirty-sixth Annual Meeting of the 
American Association of Economic Entomologists ( Continued) 
Morning Session, Tuesday, January i, IQ24 
The meeting was called to order at 10 a*, m. 
President A. G. Ruggles: The first papers on the program this 
morning will be a symposium on “Methods of Estimating Insect Abund¬ 
ance and Damage.” 
STATISTICAL METHODS IN ENTOMOLOGY 
By J. A. Hyslop, Washington, D. C. 
Abstract 
Entomological survey work has passed the stage of guessing and the biometric 
method must now be inaugurated in order that the great mass of data being collected 
by the increasing number of observers may be interpreted. The immediate prob¬ 
lem is to establish a standard set of units in entomological survey work and the 
second problem is to establish the range and type of insect dispersal. 
A year ago, before the collaborators of the Insect Pest Survey and the 
extension entomologists, I outlined the functions, as I conceived them, 
of the Survey. I wish here merely to re-state its ultimate objectives; 
First, to prepare an atlas of our insect pests, not merely distribution 
maps, broadly blocking in the extreme distribution records, but a 
weighted map of each species indicating the optimum zone, range of 
injurious records, and extreme distribution; 
Second, to obtain each year as complete an insect census as possible; 
Third, to correlate the above data with known variables, to determine 
the factors which limit insect dispersal and abundance, and, 
Fourth, from these determined correlations to lay the basis for in¬ 
sect forecasting. 
The title of the subject chosen for this year’s symposium is, in one 
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