No. 1. August, 1920] FORESTRY 23 



157. Berry, James B. Wood famine imminent. Georgia State Coll. Agric. Bull. 187. 

 4 P-, 4 fig- 1920. — This bulletin notes thai the ucme of wood production was reached in Geor- 

 gia in 1909, with the cutting of a billion board feet. Since then 1 here has been a gradual full- 

 ing off in production. — T. II. McHatton. 



158. Biolley, H. Betrachtungen iiber die Wirtschafts-Einrichtung der Waldungen in 

 der Schweiz. (Bemerkungen zu den Studien des Herrn. Dr. Ph. Flury.) [Observations con- 

 cerning improvement of forest management in Switzerland. Remarks on Dr. Ph. Flury's 

 studies translated from' the Journal of Forestry of Perret, Couvet.] Schweiz. Zeitschr. Forst- 

 wesen 71: 37—19. 1920. — Forestry is divided into two groups, one based on practical experi- 

 ence and the other on biologienl principles. Emphasis is placed on the fundamental biologi- 

 cal studies to be used as a basis for all forest practice. The practical concerns itself too much 

 witli the present production, and one pan of a forest may be left unproductive due to over 

 maturity while another is exploited during its growing period. Among the first essentials 

 for improvement are definite forest boundaries, compartments; definite volume and growth 

 tables and cutting cycles based on accurate local growth figures. The relation of density of 

 stand and increment must be correlated with cutting periods in order to secure continuous 

 production. The principal points recommended for the improvement of the forest are: 

 every acre must reach its maximum production; production as influenced by stand, site, spe- 

 cies, etc., must be determined locally; species to be used and care required; improvement for 

 regulation only should be reduced to a minimum. All changes in forest management should 

 be based on thorough scientific research. — J. V. Hofmann. 



159. Bontrager, W. E. What shade and ornamental trees shall we plant? Monthly 

 Bull. Ohio Agric. Exp. Sta. 5: 35-41. 5 pi. 1920.— See Bot. Absts. 5, Entry 1798. 



160. Bouvet, Schaeffer, and others. Congres de 1919. [Congress of 1919.] Bull. 

 Trimest. Soc. Forest. Franche-Comte et Belfort 13: 72-109. 1919.— The first meeting of the 

 Society since the outbreak of the war was held at Strassburg, August 3 to 6, 1919. In connec- 

 tion with the rejoicing over the recovery of the "lost provinces," attention was called to the 

 flattering comments regarding French methods of forest management in Alsace-Lorraine which 

 were made by German foresters after the war of 1870. Field trips were made to the forests 

 of Haguenau, Hoh-Koenigsburg, Sainte-Odile, Hohwold, Haslach and Nideck, brief descrip- 

 tions of the character and management of which are given. — S. T. Dana. 



161. Brown, W. H., and A. F. Fjscher. Philippine forest products as sources of paper 

 pulp. Forest. Bur. Philippine Islands Bull. 16: IS p. PI. 1. 1918. (1919). — A general considera- 

 tion of the bamboos, coarse grasses such as Imperata exaltala and Saccharum spontaneum, 

 various fiber plants, and some trees as potential sources of paper pulp. — E. D. Merrill. 



162. Brown, W. H., and A. F. Fischer. Philippine mangrove swamps. Forest. Bur. 

 Philippine Islands Bull. 17: 1-132. tf pi. 1918. — A general consideration of the mangrove 

 swamps, their constituent species, and economic products. Keys and descriptions are given 

 to all species, as well as local names, etc. The illustrations, chiefly photographic, are 

 excellent. In addition to general mangrove scenes each individual species is illustrated. The 

 economic discussion includes data on stand, cultivation, firewood, tanbark and dyes, with a 

 discussion of the nipa palm and its uses. — E. D. Merrill. 



163. Brown, W. H., and A. F. Fischer. Philippine bamboos. Forest. Bur. Philippine 

 Islands Bull. 15. 32 p. PL 1-33. 1918.— See Bot. Absts. 5, Entry 1015. 



164. Brunnhofer, A. Berufsfragen. [Questions of professional forestry.] Schweiz. 

 Zeitschr. Forstwesen 71 : 4-6. 1920. — A discussion of the relation of technical and commer- 

 cial forestry. A separation of the two phases is condemned on the basis that the technical 

 forester must be familiar with the commercial phases in order to practice his profession in- 

 telligently, and the commercial man must take technical forestry into consideration in utili- 



