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SECTION III.— ECONOMIC BOTANY, — Continued. 
Subjection IT, — Rubbers and Guttas. 
Class 1 .—It u bbers. 
1 African Rubber. (2 Specimens.) 
2 African Ball Rubber. 
8 Assam Rubber. 
4 Bala tic. 
(5 Specimens.) 
5 Borneo Rubber. (5 Specimens.) 
(i Caracas Rubber. 
7 Oartbagena Rubber. 
8 Ceara Rubber. 
Venezuela. 
Central America, 
Brazil. 
Bo. 
West Indies. 
0 Ceara (i Scrap. 
10 Demerara Rubber, (2 Specimens.) 
1 1 Guatemala Rubber. (8 Specimens.) 
.12 Guayaquil Rubber. (4* Specimens.) 
13 Honduras Rubber. (2 Specimens.) 
14 Java Rubber. (2 Specimens.) 
15 Madagascar Rubber. (4 Specimens.) 
Brazil. 
1<> Maranbam Rubber. 
1 7 Mexican Rubber. 
18 Mozambique Rubber. 
19 Para Rubber. 
2( ) Pa ra Ru bber i ' Sera p. ' ’ 
21 Para Bottle Rubber. 
22 Para Negrohead Rubber. 
23 Para, Milk. 
24 Para Broe. 
2d Penang Rubber. 
2b Singapore Rubber. 
27 Vulcanized Rubber. (3 Specimens.) 
2^ West Indian Rubber, 
29 West Indian Scrap 
Rubber, (2 Specimens.) 
