In sending specimens of plants for investigation it is desirable 
to include the entire plant ; if it is too large, portions showing 
leaves, flowers, and fruit are sufficient. It is best to prepare the 
specimens by drying them under pressure between folds of absorb- 
ent paper, otherwise the parts may shrink and break so as to be 
hardly recognizable. When dried plants are sent they should be 
protected from breakage in the mail by being inclosed in sheets of 
paper between pieces of stiff pasteboard. If specimens are to be sent 
fresh, moisten them slightly and pack them tightly in a box or in a 
bundle, wrapping them in heavy paper. Packages weighing less 
than four pounds can be sent by mail at the rate of one cent per 
two ounces. Write the name of the sender on the outside. In the 
letter accompanying the specimens state where each plants was 
collected, the date, the name of the collector, and add any other 
notes in regard to the economic value of the plant. 
%L §*♦ Qzpaxtmmt of Agriculture 
gotrtnirnt ^totsion, 
Washington , (D. . 
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