1918.] EXPERIMENT STATION RECOKD. 751 



FORESTRY. 



A manual for northern woodsmen, A. Cart {Camhridge: Uarvnrd Univ. 

 Press, 1918, rev. ed., pp. XIV -{-302, pis. S, figs. 87).— The present edition of 

 this manual (E. S. R., 21, p. 241) has been brought up to date as concerns 

 appliances and methods, and new matter and tables have been introduced that 

 are mainly intended for the benefit of western woodsmen. 



Annual progress report upon State forest administration in South Aus- 

 tralia for the year 1916-17, W. Gill (Ann. Rpt. State Forest Admin. So. 

 Arist., 1916-17, pp. 12, pis. 6). — A statistical review relative to the administra- 

 tion and management of the State forests of South Australia, including data 

 on alterations in forest areas, planting and other forest operations, revenues, 

 expenditures, etc. 



A few notes on bamboos (Indian Tea Assoc, Sci. Dept. Quart. Jour., No. 

 S (1917), pp. S5-87). — Brief notes on the propagation of bamboos including 

 descriptions of the most common species in Assam. 



Incense cedar, J. A. Mitchell (U. S. Dept. Agr. Bui. GO4 (1918), pp. 40, pis. 

 6, figs. S). — An account of the incense cedar (Libocedrus decurrens) of the 

 Pacific Coast States, with reference to its commercial importance, products 

 and uses, available supply, characteristics of the wood and tree, reproduction, 

 lange, silvical requirements, growth, stand per acre, enemies, management, 

 and artificial forestation. Volume tables in cubic and board feet ba.sed on 

 measurements in several National forests in California are appended. 



Note on kokan or lampatia timber (Duabanga sonneratioides), R. S. Pkar- 

 soN ([Indian] Forest Bui. 36 (1917), pp. 8, pi. i).— This note deals with the 

 general distribution, locality, and habit of kokan (D. sonneratioides) timber, 

 together with its natural reproduction, rate of growth, distinguishing character- 

 istics of the tree and timber, properties and uses of the timber, method of 

 extraction, yields, and prices. The note is accompanied by an actual specimen 

 of the wood. 



Note on the contraction and warping' which takes place in Finus longi- 

 folia timber while seasoning, R. S. Pearson ([Indian] Forest Bui. 37 (1917), 

 pp. 6, pis. 5). — This note describes experiments undertaken to ascertain the 

 amount of warp which takes place in P. longifolia timber when seasoned by 

 different methods, and also an experimental test of the amount of contraction 

 across the gi'ain which takes place as the timber passes from a green to an 

 air-dry state. 



Comparative yearly volume increments of certain Indian tree crops. 

 R. E. Marsden (Indian Forester, U (1918), No. 1, pp. 10-16) .—Tahnlnr data 

 are given showing the comparative yearly volume increments of several Indian 

 tree crops. 



Imports of timber into British India during' the years 1913—13 to 1916- 

 17 (Indian Forester, 44 (1918), No. 1, pp. 20-22). — A comparative statement 

 of imports of timber into India and Burma by sea from foreign countries during 

 the last five years. 



Lumber used in the manufacture of wooden products, J. C. Nellis (U. S. 

 Dept. Agr. Bui. 605 (1918), pp. 17, figs. 2). — ^This report presents statistics 

 showing the average annual consumption of wood by the wood-working indus- 

 tries in the United States. The basic data were secured by a series of State 

 wood-using industry studies. Those for the more important States have been 

 published separately and have been noted in the Record from time to time. 

 Although the State studies were begun in 1909 and were not completed until 

 1913, a period of 12 months was made the basis for the statistics for each 

 State, and the final figures for the whole country here presented are considered 



