[7-463-] 
ban a gn Fepariment of the 4{uterion, 
UNITED STATES. 
CENSUS OFFICE, 
of v Brookline, Mass.,. ISS 
DES rn Wir: “Tt has been Besceae the investigation into the Forést Wealth of the United States, 
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undertaken in confection with the Tenth Census, to make large collections of the wood of all indigenous Nerth 
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Pe 
ax 
American Trees. I have had such portions of these collections as have not been used up, in the experiments. 
be 
made itt the view of determining the comparative value of our woods, worked into museum sets, aie I 
am instructed by the Superintendent of Census to distribute among the Agricultural Colleges and Tech- 
nical Schools of the United States established by the acts of 1863-64, and among other institutions of learning 
in this country and Europe. These sets are generally quite full, and contain a large number of rare and little- 
known species. The specimens have been carefully prepared; they are six iuches long, but vary somewhat. 
in size; generally, but not always, they show the bark, sap, and heart-wood of the tree, and are admirably 
adapted to illustrate the characters of North American woods. 
Recipients of, these sets will be expected to pay the cost of packing-cases and transportation from 
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Brookline. 
Should you sees to receive one of these sets for the establishment over which you preside, you are 
requested to inform me of the fact at your early convenience, and instruct me in what manner you desire to 
have them sent to you. 
The sets will be ready for distribution during the month of April. 
® Yours, very truly, 
Special Agent Tenth Census. 
