A few suggestions with brief notes on some of the raw products which enter into the commerce of the world ...
|Corporate Author:||Commercial Museum (Philadelphia, Pa.)|
[Philadelphia, Philadelphia Commercial Museum, 1901]
These notes have been prepared to accompany, in an explanatory way, collections of raw products which are being sent out to schools by the Philadelphia museums to aid in the teaching of commercial geography.
2 p. l., iv, 52 p.
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