140 



Islands to Tresco by Captain A. A. Dorrien Smitli, and a plant 

 flowered in July, 1913. 0. chatamica, T. Kirk, already figured 

 in the Magazine (t. 8420), is the nearest ally to this species, and 

 grows in association with it in boggy places in the Chatham 

 Islands. ^ In its native habitat 0, semidentata exists in two colour 

 varieties, according to Capt. Dorrien Smith, one having white and 

 the other pink flowers. The plant figured bears the purple 

 flowers of the type. 



UTTh VTof 



from Messrs 



and Sons, St. Albans, in 1911, It is assumed that its native 



Me 



M 



Mexican species. [E. Can- 



cefiforme, Hook). E, profusum is most closely allied to E, 

 aromaticum^ Batem., and to E, ambignum, LindL, but differs 

 from the latter especially in having a d-enser panicle with shorter 

 and broader sepals and petals. 



Rubber. — The history of the development of the important 



more 



Para Rubber industry in the East teems with 

 or less with romance. The initial difficulties of procuring seeds 

 in the Seventies from the Amazon region, the raising of plants 

 at Kew, and their despatch to our Eastern Colonies are facts of 

 common knowledge. 



more 



under rubber increased and the industrial applications of the 

 product extended, the need for trustworthy works of reference 

 and guidance to planters has been met, and good standard works 

 on the subject are now available at low cost. 



In 



H 



from 



tlie early liistory of the use and cultivation of rubber, botanical 

 vsources, physiology of latex production, tapping experiments, 

 planting, harvesting, factory work on the estate, pests and 

 diseases, chemistry of rubber, manufactures, etc. 



The aim of the author has been " to combine an accurate 



m 



account of the scientific side of rubber planting with a certain 

 amount of practical information which may be of use to the 

 prospective planter/* The chapters on the physioloery of latex 

 are largely the outcome of original observations, whilst those on 

 the subjects of planting, harvesting and factory work on the 

 estate are likewise based on a close personal acquaintance with 

 the industry in Ceylon. The book has a number of useful illus- 



the literature of rubber. 



ffood index, and forma a most 



J. M, H 



t Cocoanuts. — Probably at no other time than the present has 



-P m^ , „ IB _ __ _ _ .. ■■■^■_ _ ^ 



* Rubber and Rubber Planting, by R. H. Lock, Sc.D., pp. xi, and 245, 

 with 10 plates and 22 text figures. Cambridge, at the University Press, 

 1913. 5s. net, 



+ Coconuts : The Consols of the East, H. Hamel Smith and F. A. G. 

 Pape, pp. Ixviii and 644, with illustrations and index, London Tropical 

 Life Publishing Department. 



