XVI 



Chapter LXIX. P3n or Betel Vine. Art of cultivation considered a 

 secret; varieties; soil; cultivation ; after-treatment; cost ; great profitable- 

 ness of the crop. pp. 429 to 433. 



Chapter LXX. Betel-nut Palm. Where grown as crop ; method of 

 growing seedlings and young plants ; spacing ; gathering of nuts; betel-nut 



plag ue - pp. 433 to 435. 



Chapter LXXI. Camphor, Cassia leaf and Cinnamon. Their growing 

 fairly well at Sibpur ; possibility of flourishing in the Gangetic delta ; how 

 propagated ; distillation of camphor ; shed leaves of tejpatd should alone be 

 collected; cinnamon and clove oils; inner bark of Cinnamomum Zeylanicum 

 giving best cinnamon ; and roots of Cinnamomum camphora giving the largest 

 proportion of camphor. pp. 435 to 438. 



Chapter LXXII. Other spices Long and round peppers ; jird ; judn ; 

 rdndhuni or wild celery; sulpa ; cardamoms; their cultivation and treat- 

 ment. pp. 43810441. 



Chapter LXXIII. Opium. Soil ; manures ; rotation ; seasons ; tillage; 

 sowing ; irrigation ; thinning and weeding ; collection of sap ; after treat- 

 ment ; cost ; manufacture ; Pasewa ; leaves ; trash ; seed and oil ; opium for 

 China. pp. 441 to 445. 



Chapter LXXIV. Tea. Natural habitat ; hybridisation and cross-ferti- 

 lisation ; means of improving tea-lands ; seed and seed-bed ; transplanting 

 and cultivation ; plucking ; withering; rolling; sieving; drying or firing; 

 oxidising ; packing ; cost ; chemistry of tea, black and green. pp. 445 to 455. 



Chapter LXXV. Coffee. Soil and climate; prospects: varieties; 

 planting ; seed, seed-bed and nursery ; harvesting ; pulping ; fermenting ; 

 drying ; hulling ; winnowing and sizing ; packing ; cost ; outturn ; 

 machines. pp. 455 to 462. 



Chapter LXXVI. Vanilla. Natural habitat ; introduction into India ; soil 

 and climate; how propagated ; cultivation and artificial fertilisation ; harvest- 

 ing of beans ; curing ; packing ; prices. pp. 462 to 466. 



Chapter LXXVII. Papaya. its importance as fruit and vegetable crop; 

 vegetable pepsin or papain how prepared ; its capability of dissolving the gum 

 of tusser cocoons. pp. 467 and 468. 



Chapter LXXVIII. Cassava. Famine foods and drought-resisting crops ; 

 importance of cassava ; its occurrence in various parts of India ; the sweet and 

 I poisonous cassavas ; how propagated ; how arrowroot and flower extracted out 

 of the roots ; Sibpur experiment ; Bolepur, Santragachi and Geonkhali 61 ; 

 African yam; Ish-kosh pp. 468 to 477. 



Chapter LXXIX. Arrowroot. Bermudas, Brazilian and Queensland 

 arrowroots, from three different plants ; propagation of Maranta arundanacea 

 and Canna edulis ; manufacture. pp. 477 to 479. 



Chapter LXXX. Propagation of trees by grafting &c. Object ; 

 tools required ; grafting wax ; root-grafting ; saddle-grafting ; cleft or wedge- 



