Rangoon. There is little original matter in the book which treats 

 of Hevea, Castilloa, Ceara rubber. Ficus elastica, Hancornia and 

 some rubber vines. A rather curious standard table of Guttas and 

 rubbers is given in the introduction, in which Hevea representing 

 Standard rubber, Parameria, Castilloa and Chavannesia (Urceola) 

 are given as second grade, Ceara, Ficus and Hancornia third grade. 

 One would be inclined to reverse these two grades only leaving 

 Castilloa in the second grade with the first two of the third grade 

 Parameria and Urceola are hardly as good as Ficus or Ceara. 

 With the standards of gutta percha, the arrangement is more curious 

 Dichopsis gutta is given as first grade. D. oblongifolia (the same 

 thing) Payena Leenfml Willughbeia edulis, (a rubber not a gutta 

 nearly equal to Para) form the second grade. The account of 

 Para rubber is poor and not up to date. The authors have appa- 

 rently had access to a few works only on rubber cultivation, and 

 practically know nothing of rubber cultivation in Malaya. A page 

 or so is given to the subject of shade trees for Para rubber. This 

 may be necessary in countries unsuited for the plant, but is not 

 required in the rubber zone The spiral tapping system (now 

 everywhere abandoned) is recommended. 



The description of the tree is very inaccurate. Thus the flowers 

 are%ot white as stated but yellow, the fruit is not yellow but green 

 and is smaller than a garden tomato. The seed oil is not violet but 

 brown or yellow, and the statement that "the germ contains an 

 active purgative principle not found in the rest ..f the seed^ wW» 

 has of course to be removed i efore proceeding to extract he oil 



who have often < 



the seed 1 



impunity. 



The authors think that Para rubber will do well in Port "?f * 

 India, for one specimen at least is over 25 feet tall though 'tis 

 more than 6 years of age! This would hardly be considered 

 great success in the Malay Peninsula. . are 



Of the other rubbers Ceara. Ficus and Castilloa the founts are 

 chiefly extracted from well known publications. The autnorS ; ubber 

 ever, give some accounts of the Mangabeira Hancornia, ^ ^ 

 tree little known, which has never been tried here net on ac 

 its slow growth and poor rubber as the authors suggest but oe 

 seeds and plants were not procurable. It is, howeve a a > 

 country, dry region plant, and is hardly suited for this wet reg 



The Chapter on land tennure in India is useful for Indian oh** n 

 ~nd the estimates of return to capital seem fairly ™* s0 ™ Er io- 



the scheme 



nxed plantatic 



dendron and Bombay as a kind of catch crop does not con 

 itself, and to suggest that "such important tree s as ^ 

 glabra. Calophylluminophyllum, Sterculia foeUda m.g [M iie 

 a valuable source of profit'' is simply misleadmg. The) 

 valueless trees. . . 



The" book contains n 

 which are those showii 



