(21) 



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 

 condition. 



Resins. 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. 



Slices 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 Materials. 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 Masticatories. Cases 31 to 33. — Tobaccos 

 are shown by a series of bundles of the cured leaves of the 



