JOURNAL OF ECONOMIC ENTOMOLOGY 
OFFICIAL ORGAN AMERICAN ASSOCIATION OF ECONOMIC ENTOMOLOGISTS 
APRIL, 1924 
The editors will thankfully receive news matter and other items likely to be of interest to our readers . 
Papers will be published as far as possible in the order of reception, except that papers of reasonable 
length may be accepted in the discretion of the editor for early publication, at $3.00 per page for all 
matter in excess of six printed pages; in the case of other matter, the maximum of 2,500 words is still 
operative. Photo-engravings may be obtained by authors.at cost. 
Separates or reprints, if ordered, when the manuscript is forwarded or the proof returned, will be 
supplied to authors at the rates given below. Note that the number of pages in a reprint may be 
affected somewhat by the make-up, and that part of a page is charged as a full page. Carriage charges 
extra in all cases. Shipment by parcel post, express or freight as directed. 
i *. J 
One hundred separates or reprints at $2.50 per page or plate. Additional hundreds or less, 4 pages 
or less, $1.00; 5-8 pages, $1.50; 9-12 pages, “’1.75; 13-16 pages, $2.00; 17-24 pages $3.00; 25-32 pages, 
$4.00. Covers suitably printed on first page only, 100 copies, or less, $4.50; additional hundreds, or 
less, $1.75. Plates inserted, $1.75 per hun Ired, or less. Folio reprints, the uncut folded pages (50 
only), sixteen page signature, or less, $3.00. 
The symposium on estimating the abundance of insects opens up a 
wide held in relation to entomological statistics and reveals considerable; 
diversity of method. There is little question but that injuries caused 
by insects are greatly underestimated as a rule and the benefits resulting 
from judicious control measures are very rarely fully appreciated. 
There is a marked difference between the percentage loss in the crop and 
the financial loss resulting from insect operations—market conditions 
very materially affect the latter. Economic entomology, before it is 
fully appreciated, must evaluate itself with a reasonable degree of 
accuracy, therefore the estimating of the abundance of insects and the 
losses from pest depredations have a greater practical value than appears 
at first sight. There is a weak link in the chain of circumstances which 
permits the repeated halving of estimates made by experts and the 
publication as actual losses of figures one-eighth the size of the original 
estimates. It w r ould seem from subsequent developments that the 
experts were nearly right and that there was need of educating those 
responsible for the reductions. A well developed and comprehensive 
method of estimating would have gone far toward remedying the con¬ 
dition, and there is no question but that we are progressing in this 
direction. The problem is really a very complicated one and present 
methods can not be scrutinized too closely in order to avoid everything 
of a doubtful or misleading nature in regard to our estimates. They 
should represent, so far as may be, an accurate picture of conditions and 
346 
