
| MONTHLY LETTER OF THE BUREAU OF ENT OMOLOGY 
UNITED STATES DEPARTMENT OF AGRICULTURE, 
— aS SS 





























— TD ee ee nee ee ee ee ee — 
re os ad partner ivurinetiendredecdiasteast teeter ee 
a SS NT Hee ed ae, Sat heey Sah det id ele eter cal Seal ae de een ca ald toe eee teal Sag tee teas See ee aes en Ga en Ge Sa 
we ae oe i im roped ee oe pee 
— Sees Sh cs in <8 ERA tire quer Seep Spolienlitedieteioaast ee at ei ek eel 
Ne AA le tm ed es ey em ae dong Nh Sone Saw ewe tas ene Inge mom OY Set wee was mes Gee tert cam onei Sen ine me ee oe mee 
i ~ i 
an Sgn] (+ Tj} va ri) vty Y : ee ‘ ae 
-Bouair, FOR OURSELVES, GENEROUSLY. NOW LET US-‘GIVEs FOR OTHERS; BOUNTIFULLY. ! 
> * 
The United War-Work Campaign is under ‘way! In:the weék befitming November 11 
sven -great:organizations--The Young Men's Christian Association; The Young Women’s 
wistian Association, tho National Catholic War Council; “the Jewish Welfare Board, 
1@ War Camp Community Service, the American Library Association, and the Salvation 
ty-“are to conduct a joint campaign to raise $170,500,000 tb continue their work, 
is is the largest amount ever asked in a single appeal. ‘The War Department hag, . 
pcoghized all of these organizations‘as accepted instruméntalities through which 
f@ tien in the ranks are to be assisted in many essential matters of recreation, and 
' The American Library Association’s share of this fund is $3,500,000. ‘To those 
hO are asking why the Association needs more money and more boooks now when over 
(000,000 volumes have already been given this year by tho people of the United 
fates, the answer is that the American Expeditionary force is a reading army, and, 
bre than that, an army which clamors for solid reading: Technical and scientific 
poks, text-books, history--everything of an educational nature. The books given 
rom the “average man’s bookshelves" last spring are of little value as educational 
orks now because not up to date. Also, very many of those contributed were fiction; 
n fact, nearly all that could be used were fiction, For this reason money is need- 
1 to procure the new and solid books, books that will help a man to succééd' in arms, 
slp him to understand better what he is fighting for and to be a better citizen — 
hen he returns. Stories are needed, too, those full of action such as detective 
tories, tales of the Rockies, and Dumas’ works; poetry is needed--Service and Kip- 
ing are favorites of the soldier; and of books of-History and guide books of France 
90 many cannot bo provided. i 
Therefore, give as freely as you can to this fund. The larger your contribu- 
ion, the better the life for tho soldier in whom YOU are interested at the front, 
nd through his sustained morale the quicker the ending of the war.--M. Colcord, - 1 
a * ls te eee Ome wee 

FREDERICK KNAB. 
November 2, 1918. Word has just come that Mr. Frederick Knab, Entomological 
$sistant in the Bureav, and, since the death of Mr, Coquillett, Honorary Custodian 
P the Diptera in the National Museum, has died. Mr. Knab first entered the Bureau 
1 April, 1906, and-during his twelve years’ work with us gained a very high rank, . 
is scientific work was of the highest character; his reading was broad, and was 
xcilitated by his knowledge of several foreign languages. He had traveled exten- 
ively in his earlier years, and, in fact, while in Brazil somo time before he came 
9 the Bureau he-probably contracted the obscure disease that eventually ended his : 
ife. He was not incapacitated for work, however, until comparatively recently, 
during the whole-period in which the disease remained dormant and slowly pro- 
sed his researches on disedse-bearing insects, and especially on mosquitoes, mado 
im one of the foremost workers in this field. He was an artist of very unusual abil- 
by y as is especially shown by the wonderful illustrations of mosquito larvae poi ls 
hced in the Carnegie Institution Monograph of the Mosquitoes of North and PhO 
erica and the West Indies and which, in fact, reached the summit of beauty and 
fection. His training in art was se a a, young man in Dresden.--L. 0. H, 
ver 
