844 EXPERIMENT STATION RECOED. 



Tirlef practical notes are given on their habitats, leading characteristics, present 

 occurrence, and probable value in New South Wales. 



Contribution to the knowledge of some timbers of the Eritrea Colony, 

 L. Senni (BoL R. Orto Bot. Palermo, 7 (1908), No. 1-3. pp. 37-58).— Brief notes 

 are given on the structure and other characteristics of the woods of several 

 timber trees found in the Eritrea Colony, Africa. 



An analysis of Canada's timber wealth, B, E. Fernow {Forestry Quart., 

 6 (1908). No. 4, pp. 337-353, figs. 6, maps 2).— A preliminary survey of forest 

 conditions, forest types, and timber areas in the Dominion of Canada, with esti- 

 mates of the standing timber in the different provinces. The study is based 

 partially upon the information available, but largely on a study of the geological 

 and climatic conditions which predicate forest types and forest conditions. The 

 author estimates the present supply of timber in the eastern provinces, under 

 prevailing methods of lumbering, as 300,000,000,000 ft. and for the whole of 

 Canada 600.000.000.000 ft., although it is believed that this estimate could be 

 conservatively doubled with a closer utilization accompanied by adequate fli'e 

 ]irotection. 



A compilation of the meager reports on timber conditions in northern Canada 

 has been prepared by R. E, Young, Canadian Department of Interior, Ottawa, 

 and as far as practicable the results have been mapped. By special arrange- 

 ment this map accompanies the present article. The important features shown 

 are the poor scattered timber, the fairly wooded and thickly wooded areas, the 

 brule, the prairie, and the bare or treeless lands. 



Wood preservation by the open-tank process, E. F. Hartmann (Engin. 

 Neivs, 60 (1908), No. 27, pp. 7^0-7 'i2, figs. J-i). — This is a general discussion of 

 the subject of wood preservation with special reference to the open-tank 

 process (E. S. R., 19, p. 150). Descriptions and illustrations are given of 

 sevei'al open-tank systems in operation in this country. 



Experiments in tapping Ceara rubber trees, E. V. Wilcox (Haivaii. For- 

 ester and Agr., 5 (1908), No. 12, pp. 318-320, fig. 1).—A brief summary of the 

 rubber experiments which are being carried on by the Hawaii Station and the 

 Territorial Board of Agriculture and Forestry in cooperation with private 

 rubber-planting interests. The results obtained thus far in the experiments 

 appear to indicate clearly that the Ceara rubber tree in Hawaii will not only 

 grow and thrive but will also yield profitable returns. Further experiments 

 will include tests of various tapping methods and trials of various species of 

 rubber. A series of fertilizer experiments is also planned. 



Report on the cultivation of rubber in Ceylon and the Federated Malay 

 States and Johore, F. T. P. Waterhouse (Haivavi. Forester and Agr., 5 

 (1908), No. 11, pp. 2-'t9-30Ji. figs. 32).— This is a report to the Hawaiian Board 

 of Agriculture and Forestry and the Hawaiian Rubber Growers' Association, 

 upon the status of the rubber industry in the above-named countries, together 

 with the climatic and soil conditions, and the methods of planting, cultivation, 

 tapping, and treatment of rubber in use. The various phases of the report are 

 illustrated. 



The rubber industry in the territories of Manica and Sofala, W. H. John- 

 son (London, 1908, pp. 39). — This is a report on the source, collection, and 

 preparation of wild rubber, together with the present status of the rubber 

 planting and experimental tapping operations in the above territories. The 

 author concludes that, although Ceara rubber satisfactory in quality and 

 value can be produced in Portuguese East Africa, it still remains to l)e de- 

 termined whether the use of improved methods of tapping will increase the 

 yield of rubber to the remunerative point. 



