878 



Watt a908). DP. 108-110. Bamboo 



Making, by W 



Co. London, 1909). " Megass and Bamboo Paper in Trinidad/* 

 Journ. Roy. Soc. Arts, Sept. 1st, 1911, p. 974. "Report on 



Bamboo as a material 



W 



(< 



part 3, 1912, pp. 1-37, and *' Note on the Utilisation of Bamboo 

 for the Manufacture of Paper-Pulp,'' by R. S. Pearson, I.e. iv. 

 part 5, 1913, pp. 1-121— Kew BuU. 1913, pp. 128-129; 

 Bamboo " in *' New Sources of Supply for the Manufacture of 

 Paper," by Clayton Beadle and H. P. Stevens, in Journal of the 

 Royal Society of Arts, Feb. 14th, 1913, pp. 349-351; "Manu- 

 facture of Paper-Pulp for Export," Bull. Imp. Inst. xi. 1913, 

 pp. 136-141~including Bamboo; "The UtiUsation of Bamboo 

 for Paper-making," I.e. xviii. 1920, pp. 403-427. 



The principal species recommended are Bambtisa polymorpha, 

 Munro, 60-80 ft. high, B. arundinacea, Willd., the "Spiny 

 Bamboo," 80-100 ft. high; B. Tulda, Roxb., 20-70 ft. high, 

 India & Burma; Cephalostachyum pergraciUy Munro, 30-40 ft. 

 high, of Burma, and Melocanna bambusoides , Triii., the " Terai ** 

 or " Berry-bearing " Bamboo; 50-70 ft. high of Eastern Bengal 

 and Burma. The most useful species is probably Bamhusa 

 polymorpha — the report by Raitt (l.c) is printed on paper made 

 from it and so also the work by Sindall, above mentioned. The 

 production of pulp appears to be still more or less in the experi- 

 mental stage and when the difficulties of treatment have all 



overcome 



Hmited 



British Empire — should make this industry capable of the 

 highest development under the care of the Forestry Departments 

 of our Tropical Colonies. The economical treatment of Bamboo 

 is said to be largely dependent upon its treatment preparatory 

 to the boiling and the main object is to produce a clean pulp to 

 sell at the best possible price. In a mill recently (about 1913) 

 equipped by Messrs. James Bertram & Son; Ltd. in China, the 

 method is to first remove all knots; the internodes are then 

 cut into pieces 1 in. long to allow of economical boihng with 

 the minimum of soda. This miU is capable of producing 



18-20 tons of dry bamboo 



Attempts 



are being made to provide a simple and efficient machine to 

 treat the stems without removing the knots. Raitt recom- 

 mends as the proper mode of treatment — crushing, then treating 

 for extraction of starchy matter prior to digestion by the 

 " sulphate process " (Beadle & Stevens, Journ. Roy. Soc. Arts. 

 I.e.). He estimates (Indian Forest Records, iii. 1912) the cost 



of treatment for the production of 

 " 92 runees 8 annas or sav£6-35. 4t/ 



pulp 



brin 



bleached bamboo-pulp up to £9 per ton; this would, if shipped 

 to this country, apparently jaeld no margin of profit in compe- 

 tition Math bleach wood-pulp " (Beadle & Stevens, l.c. p. 35j)). 



