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gutta percha, which is derived from the trunks and foliage 
of certain trees belonging to the sapodilla family, these trees 
growing in many portions of the tropics. The specimens ex- 
hibited show this product in both the crude and refined 
ftesins. Cases 21 and 22.— The cases devoted to resins 
contain on the one hand a large trunk of the long-leaf pine, 
with a turpentine box, together with a series of specimens of 
turpentine and resin, illustrative of the trade-classification of 
these products, and on the other hand a series of resins 
derived from other species of pine and related trees, and also 
those from trees representing the mulberry family, the mi- 
mosa family, the sumac family and the myrrh family. 
Spices and Flavoring Agents. Cases 23 to 26.— These 
substances form quite a large series in which is shown the 
parts of the plant that yield spices and flavoring extracts; for 
example, licorice is extracted from the roots of the licorice 
plant. Ginger is a rootstock, the underground stem of the 
ginger plant; cinnamon is a bark; bay, sage, mint, thyme are 
leaves ; cloves are flowers; coriander, allspice, black pepper, 
celery seed, caraway seed, vanilla bean and tonka bean are 
fruits; mustard and nutmeg are seeds, and mace is the outer 
coat of the nutmeg. 
Fodder Plants. Cases 27 and 28. — Following the spices 
are fodder plants, which are shown as sheaves, and consist 
of grasses, sedges, bush-clovers and related plants. 
Dye Stuffs. Case 29.— The dye stuffs are represented 
by logwood, madder, alkanet root, indigo and oak galls. 
Tanning Matervals. Case 30.—The tanning materials 
are also very important from an economic standpoint; they 
are represented by saw-palmetto, mangrove, pine, hemlock 
and sumac. The crude materials of the mangrove and the 
saw-palmetto are accompanied by the fluid extract which 
contains the tannic acid and also by the spent material or 
refuse which remains after the extract has been made. 
Tobaccos and Masticatortes. Cases 31 to 33. — Tobaccos 
are shown by a series of bundles of the cured leaves of the 
