No. 1, July, 1920) FORESTRY 61 



403. BbbemfeIiDESR, EDUABD R. Heimisches Terpentinol und Harz. [Domestic turpen- 

 tine oil and rosin. | Forstwiss. Centralbl. 41: 19 68. L919. -During the war a method was 

 devised by which pine lumber can be dried in three days. The process yields a considerable 



amount of turpentine and rosin as by-product. The total pine wood cu1 each year in Ger- 

 many could yield some ;}7K,000 mcl i ic ions of cxi racl , of v. Inch about one-fourl h v. ould be 

 oils, the rest turpentine and rosin. The total consumption of imported pine oils by German 

 industries amounted in 1913 to 57,000 tons, worth 39,000,000 million mai ~:nce spruce 



yields as much oil as pine, this process opens an opportunity for wood pulp manufacturers, 

 who use both woods. — W. N. Spar hawk. 



404. Bibb, T. W. Burning the profits. A problem confronting the lumber industry of the 

 Pacific Coast. Sci. Amer. 121 : 110-111. 4 fig. 1919. 



405. Brown, W. H. Vegetation of Philippine mountains. The relation between the en- 

 vironment and physical types at different altitudes. Philippine Bureau of Sci. Publ. 13: 1-434. 

 PI. 1-41, fig. ISO. 1919.— See Bot. Absts. 4, Entry 180. 



406. Brubaker, H. W. A study of the oil from sumac (Rhus glabra). Jour. Indust. Eng. 

 Chem. 11: 950. 1919. — Sumac oil compares favorably in properties with other vegetable oils 

 such as cottonseed or corn oil and may find a use as an edible oil or in the soap making industry 

 or as a semi-drying oil in the paint industry. — Henry Schmitz. 



407. Butler, O. M. "Built-up wood." Amer. Forest. 25: 1410-1414. 7 fig. 1919. — 

 An article dealing with experimentation with laminated wood and certain manufactured arti- 

 cles therefrom, as conducted at the Forest Products Laboratory at Madison, Wisconsin. — 

 Chas. H. Otis. 



408. Chancerel, L. Note sur les meilleures essences de boisement dans la region du 

 centre. [Note on the best species for reforestation in the region of The Centre.] Ann. Sci. Agron. 

 Francaise et etrangere 35 : 285-287. 1919. — Following some variety testing of leafy and resin- 

 ous trees, begun in 1909, recommendations are made for reforestation in the region of The 

 Centre, where a maximum of woody material in a short time was desired. The plantings were 

 made in a poor sandy soil, which was dry in the summer, wet in places in the winter and, on 

 the whole, unfit for agricultural purposes. Recommendations are as follows: (1) Leafy: Quercus 

 palustris, Quercus rubra and Quercus phellos; Betula nigra var. rubra; Alnus cordifolia; Pop- 

 ulus balsamifera, Populus nigra var. angulata robusta. (2) Resinous: Pinus maritima Ham- 

 iltoni var. Corte mixed with Pinus sylvestris vars. Riga and Scotica; Pseudotsuga Douglasii; 

 Picea Menziesii; Cedrus deodar a. — A. B. Beaumont. 



409. Chapman, H. H. Forestry as a vocation. Amer. Forestry 25: 1075-1077. 1919. 



410. Clopper, H. S. The "Wye Mills oak." Amer. Forestry 25 : 1482-1483. S fig. 1919. — 

 Describing a remarkable old tree located in Queen Anne County, near Wye Mills, Maryland. — 

 Chas. H. Otis. 



411. Cowan, James. Crop production in the northern sandhills. Nebraska Agric. Exp. 

 Sta. Bull. 171. 8 p. 1919.— See Bot. Absts. 4, Entry 52. 



412. Dahl, A. L. Trees for the desert. Uncle Sam to re-forest barren areas. Sci. Amer. 

 Supplem. 87: 188-189. 8 fig. 1919. 



413. Daniels, O. T. [Forest fires in Nova Scotia.] Fruit Growers' Assoc. Nova Scotia 

 Ann. Rept. 55: 52-58. 1919. — An account is given of forest fires in Nova Scotia in 191S, their 

 extent and causes. The number of acres burned over was 5S,3S0 and the total damage was 

 $139,110.— Paul A. Murphy. 



414. Davis, R. O. E. Erosion in the Appalachian and Piedmont regions. Amer. Foresm 

 25:1350-1353. 5 fig. 1919. 



