MONTHLY LETTER OF THE BUREAU OF ENTOMOLOGY 
UNITED STATES DEPARTMENT OF AGRICULTURE, 
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iamaber 46. February, 1918, 







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WHERE DO YOU STAND TODAY? | PR a 
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TEITHER YOU ARH FOR THM UNITED STATES -- OR YOU ARB AGAINST IT! ‘THERE GAN BE 
NOMIDOLE ROAD! TO DO, WHOLE-H=ARTEDLY, THE TASK WHICH THE FORTUNES OF WAR 
“AND YOUR COUNTRY HAVE SET BEFORE YOU, IS THE GREATEST SERVICE TO YOUR COUNTRY! 
“HISTORY MAY NOT ALLOT TO YOU A PLAGE IN THE HALL OF FAME! ‘THE PLAUDITS OF A 
GRATHFUL COUNTRY MAY NOT ACCLAIM AND CROWN YOUR EFFORTS! BUT IN THR END YOU 
Y RUST IN THE REALIZATION - THAT YOU HAVE DONE YOUR WHOLE DUTY - AND AFTER 
ALL -= WHAT MORE HAS LIFE TO OFFER? WHAT WOULD IT BENIFIT A MAN OR HIS GHIL- 
DREN; THEN- IF HE GAIN THE WHOLE WORLD - AND GO DOWN TO HIS GRAVE - A SLACKER? 
© °° ADDITIONAL NOTE ON THE EFFECT OF THE COLD WINTER UPON PRINCIPAL 
iE tox es. | CROP INSECTS. 
In the January Letter I asked for observations during the coming season 
as to the effect of the extraordinary winter on the principal insect enemies 
of the important crops. 
Dr Henry Fox calls my attention to the danger of misinterpretation as 
to cause cf lessened numbers of such pests, showing that in his work certain 
'grouse-locusts which past the winter in the adult stage are scarce at Clarks- 
ville, Tenn., where they were very common’ last spring. It would be fair, withe 
out other knowledge, to attribute their present scarcity to the severe cold of 
‘the present winter, but he happens +o know that they were just about as scarce 
‘lest fall as they are now, and thinks that the reason was a long period of very 
dary weather in the early fall which came at a time when the eggs should have 
been hatching and the young beginning their development. So it will be well in 
submitting observations to consider possible explanations cther. than the extrae 
‘ordinary cold of December and January. (L.0.H.) 














VISTOR TO THE BUREAU IN FEBRUARY. 
Mr. P. van der’ Goot, of Buitenzorg, Java, Entomological Assistant at 
‘the great sugar experiment station there, wes in Washington from the 15th to 
the 25th of February, looking up matters connected with the injurious insects 
Of tropical crops. Mr. van der Goot is especially well known by his writings, 
his large contribution to the knowledge of Aphididae of Java and other papers 
Of importance. He speaks English very fluently, and is still a young man with 
many years of work ahead of him. Ne is on his return to Java from Holland, 
and will stop, in crossing ‘this country, at New Orleans, at Tucson, and at 
Pasadena, and hopes to spend ten days in Hawaii. (L. 0. H.) 
e WAR LIBRARY SERVICE 
The response of the people of the United States to the request of the 
American Library Association for books for the camp libraries has been most 
generous. Each of the 32 cantonment libraries how has a library building con- 
taining from 10000 to 15000 books and accomodating from 175 to 200 readers. 
Phese are also at cach large camp from 8 to 20 branch stations containing from 
500 to 1500 books and several deposit stations. The call still comes for bookss 
half a million 
