19181 POEESTRY. 145 



(1917), No. 2, pp. IY+66, pis. 3). — This comprises statistics relative to girth 

 increment, volume increment, and yield of a number of Indian trees. 



Report of the director of forests, N. W. Joixy (Ann. Rpt. Dept. Pub. Lands 

 Queensland, 1916, pp. 50-55, pis. 3). — A progress report on the administration 

 and management of the State forests and national parks of Queensland for the 

 year 1916. Data relative to alterations in forest areas, timber yields, revenues, 

 expenditures, etc., are included. 



Evaporation records from the Gulf coast, Laura Gang and J. McNeixl (Bot. 

 Gaz., 64 (1917), No. 4, pp. 318-329, figs. ^).— In connection with field work in 

 daily rate of evaporation in several of the typical plant associations were kept, 

 some of them running through a period of 19 months. The recording stations 

 are here described, and the average monthly and yearly rates of evaporation 

 Gulf coast forest associations and their relations in succession, records of the 

 northern Florida undertaken to determine the composition and limits of certain 

 are presented in a series of charts and discussed. 



" Black storms " and their relation to forestry, L. Kibillov (Selsk. Khoz. 

 i Ltbsov., 252 (1916), Nov.-Dec, pp. 48-74). — The author gives an account of 

 soil abrasion by storms in the fertile black belt of Ru^ia and the prevention 

 of such abrasion by afforestation. Among the trees used for this purpose are 

 the common pine (Pinus sylvestris), red cedar, white birch, blackthorn (P7'unus 

 spinosa), and Juniperus sabina. 



Trees recommended for planting, J. F. Rock (Hawaii. Forester and Agr., 

 14 (1917), No. 11, pp. 331-337).— In this paper the author gives a list of trees 

 recommended for planting in Hawaii, with reference to the conservation of 

 water and the protection of watersheds, prevention of sand or dust drifting, 

 and the reforestation of eroded and arid areas on slopes of mountain ranges and 

 on plains. 



Forest fire prevention in cooperation with the Federal Government, J. H. 

 Foster and F. H. Millen (Bui. Agr. and Mech. Col. Tex., 3. ser., 3 (1917), No. 

 13, pp. 12, fig. 1 ) . — An account of the development of forest fire prevention work 

 in Texas, including data on the results secured in the fall of 1916 and spring of 

 1917. 



Forest depredation and utilization, F. W. Rane (Proc. Soc. Prom. Agr. Set., 

 57 (1916), pp. 73-82). — A discussion of forest utilization as a factor in control- 

 ling the depredations of the gipsy and brown-tail moths, based upon results 

 secured in Massachusetts. 



Natural reproduction from seed stored in the forest floor, J. V. Hofmann 

 (V. S. Dept. Agr., Jour. Agr. Research, 11 (1917), No. 1, pp. 1-26, pis. 8, figs. 

 4). — The results are given of a five-year study of some 750,000 acres of burns 

 and 7,780 acres of cut-over land in the Pacific Northwest conducted to deter- 

 mine the true source of seed of young stands of Douglas fir and western white 

 pine that spring up on these burns and cut-over areas. Summing up the evi- 

 dence as a whole the author reached the following conclusions : 



" The distance to which seed trees are capable of restocking the ground is 

 limited to from 150 to 300 ft. They can not, therefore, account for the restock- 

 ing of the large burned areas. Tlie irregular, dense stands of young growth 

 are due to seed stored in the forest floor or in cones. This seed retains its 

 viability through the fire and is responsible for the dense reproduction that 

 springs up after the first fire. The even-aged stands of reproduction immedi- 

 ately following a fire, regardless of location of remaining seed trees, the irregu- 

 lar alternation of dense stands of reproduction with grass areas, and the failure 

 of reproduction on areas burned over by a second fire before the stand reaches 

 seeding age or by consuming all of the duff and precluding any possibility of 



