Xli ILLUSTRATIONS. 



No. Paire 



39 Bladdery fucus . . . . . . .267 



40 Soapwort - . . 280 



41 Wood sorrel . . . . k ' . ' . .288 



42 Slaves gathering indigo ...... 309 



43 Woad 333 



44 Logwood-tree 339 



45 Madder . . . . ... .348 



46 Brazil-wood . ' . . .'../. . 358 



47 Rocella tinctoria 364 



48 Weld 377 



49 Hiccory 388 



50 Arnatto 389 



51 Turmeric . . . . . . . .394 



52 Oak-galls . . . * 409 



53 Chian turpentine-tree . . . . , .. .415 



54 Scotch fir . . . . . . . .417 



55 Mastic-tree 423 



56 Gumarabic . . . . . . .433 



57 Astragalus tragacantha . . . . . . 437 



58 Frankincense trees ...... 446 



59 Larch . . . . . . . .448 



60 Camphor . . . . . .449 



61 Trees from which Caoutchouc is extracted . . .452 



