Insects of Shade Trees and Their Control. 9 
rate as can be given. The labors of these specialists are greatly sim- 
plified, however, and the answers can be more direct and prompt if 
inquiries are accompanied by specimens of the insect, its work, or 
both, and a description of the extent of the injury and other pertinent 
information. These officials are glad to receive specimens and in- 
formation, as it often adds to the knowledge of the distribution of the 
insects, their habits, etc. A note on the results of treatment is also 
always welcome. 
DIRECTIONS FOR PACKING AND SHIPMENT OF SPECIMENS OF 
INSECTS AND THEIR WORK. 
To receive specific information on insects, insect injury, and reme- 
dies promptly— 
(1) Address inquiries and specimens to the State entomologist of 
your State or to the Bureau of Entomology, United States Depart- 
ment of Agriculture, Washington, D. C. This bureau is the only 
organization in the Federal Government service that is charged with 
the study of insect problems, so that correspondence on such matters 
must reach this bureau before it can be given proper attention. Ad- 
dressing communications to any other office only delays matters. 
(2) The name and address of the writer should appear plainly on 
wrappers. Specimens of live insects and their work, preferably 
fresh, should accompany inquiries and should be packed about as 
follows: (a) Wood and bark borers are best left in their burrows and 
the wood or bark containing them cut into convenient sections, tied, 
and wrapped in two thicknesses of stout paper; (0) leaf-eating insects 
(separated by kind, if more than one, to prevent cannibalism), in 
tight wooden or tin containers or mailing tubes manufactured for the 
purpose, stocked with their favorite food (holes are unnecessary) ; 
(c) underground insects, in earth; (d) scale insects, attached to the 
bark or leaf; (e) leaves and other small specimens showing insect 
work inclosed with letters. 
When more than one kind is sent, each should be accurately labeled 
with locality, name of sender, and a number or letter for ready asso- 
ciation with corresponding marks in letter or note and with one 
another. Labels for insertion with alcoholic specimens should be 
written with soft pencil. Tight, stout containers, properly wrapped, 
addressed, and tied, prevent escapes, breakage, and loss in transit. 
Tags must be securely fastened to packages. 
(3) Notes.—It is very important that specimens be accompanied 
by information giving as accurately as possible (a) name of host tree 
and part attacked, (6) locality, (c) date of collection, (d) character 
and extent of injury, (e) facilities for disposal of infested timber, and 
