BOTANY AND PLANT ECONOMICS 111 
(Cedrela odorata), the fluted Aglaia (Aglaia sp.), and the Star- 
shaped Leopard Tree fruit {Flindersia australis) from New 
South Wales. Note the various gums, and Crab Oil from the 
seeds of the Crabwood (Carapa guianensis) of South America, 
used as an illuminating and healing oil. 
Case 475. — Note the various tanning barks and mahoganies, 
especially Honduras Mahogany (Swietenia mahogani) and the 
Spanish or Cigarbox Cedar {Cedrela odorata) ; also the Carapa 
shingles {Carapa guianensis) which are very resistant to the 
weather on account of the oil with which they are naturally satu- 
rated. 
The Rue Family {Rutacece), 
Case 476. — Note the model of the Grape Fruit {Citrus decu- 
mana) blossom giving the full characters of the Orange flowers, 
especially the oil dots that appear upon various parts of the 
flower. Note the jewel box made from the rind of the Bergamont 
fruit {Citrus bergamena), and the Indian Bel fruit {Aegle mar^ 
melos) known also as the Bengal Quince, a fruit delicious in 
taste and exquisite in fragrance, yielded by the most sacred of all 
Indian trees. Note the preserved Orange flowers {Citrus auran- 
tium)y a Persian sweetmeat, and the fruit and wood of the Chi- 
nese Cork Tree {Phellodendron amurensis) now being planted to 
some extent in this country. 
Case 477. — Note the various barks utilized as antidysenterric 
remedies, and the peculiar, warty bark of various trees known 
as Hercules’ Clubs {Xanthoxylum sps.). 
The Papaw Family {Caricacece) . 
Case 478. — Note that the pawpaw of the United States does 
not belong to this family, but to the Custard Apples (Case 464). 
The papaw of the American tropics {Carica papaya) is the 
well known fruit that yields Vegetable Pepsin. The fruit is 
shown, in section, in this case. Note the beautiful glass model 
of a complete cluster of male flowers, and the wax and glass 
models of both the male and the female flowers enlarged. 
The Incense Family {Burseracece), 
Case 479.^ — A small family of tropic trees and shrubs, most of 
which yield a more or less aromatic gum. Note Gum Olibanum 
