24 FORESTRY [Bot. Absts., Vol. V, 



zation and harvesting, otherwise the scientific phase, which aims at continuous production, 

 will be defeated. For these reasons a forester in either field must have a good knowledge of 

 the other field, and the best interests of forestry will be served by keeping the two phases 

 combined and making up the deficiency of men by reducing the areas under each forester 

 and furnishing him with an assistant. — J. V. Hofmann. 



165. Burkill, I. H. The composition of a piece of well-drained Singapore secondary 

 jungle thirty years old. Gardens' Bull. Straits Settlements 2: 145-157. 1919. — See Bot. 

 Absts. 4, Entry 2S0. 



166. Burrow, Gordon. Reproduction of cypress pine. Australian Forest. Jour. 2: 91- 

 92. 1919. — A note on the factors governing the reproduction of this species. The author 

 is convinced that a good seeding season and a good growing season are co-essentials. A good 

 seed crop is dependent upon sufficient precipitation to set and nourish the young cones and 

 bring them to maturity. Drought, rabbits, and fire are serious enemies of young reproduc- 

 tion. — C. F. Korstian. 



167. Champion, H. G. Observations on some effects of fires in the chir (Pinus longifolia) 

 forests of the West Almora Division. Indian Forester 45: 353-364. 1 pi. 1919. — Examina- 

 tions of burned areas after a fire show damage cannot be estimated until several months 

 later. Insects for some unknown reason did not appear in large numbers after fire in mature 

 stands though death continues afterward, which may be due to a destructive fungus. Damage 

 by fire may be as much due to heat-killing as flame itself. In young trees damage bears an 

 inverse ratio to height, the smaller the tree the greater the loss. On reproduction, fire ap- 

 pears to have a beneficial effect, probably due to reduced competition, food or soil water. 

 Fire in mixed stands operates to thin out the chir and increase oaks and other trees. — E. N. 

 Munns. 



168. Chapman, H. H. A program for private forestry. Amer. Forest. 25: 1405-1406. 

 1919. 



169. Claudy, C. H. Economic tree murder. How we are denuding our 'orests to supply 

 Europe while she is conserving her own timber. Sci. Amer. 121: 132. 145. 1919. 



170. Cook, O. F. Olneya beans. Jour. Heredity 10: 321-331. Fig. 18-17. 1919.— See 

 Bot. Absts. 4, Entry 549. 



171. Cremata, Merlino. Algo sobre nuestros bosques. [Forest preservation. 1 Revist. 

 Agric. Com. y Trab. 2: 610-611. 1919. An article of forest conditions in Cuba and on forest 

 preservation. — F. M. Blodgett. 



172. Crevost, C, and C. Lemarie. Plantes et produits filamenteux et textiles de lTn- 

 dochine. [Fiber- and textile-producing plants of Indo-China.] Bull. Econ. Indochine 22: 

 813-837. PL 2. 1919— See Bot. Absts. 5, Entry 1122. 



173. Dana, S. T. National forests and the water supply. Amer. Forest. 25: 1507-1522. 

 S3 fig. 1919. 



174. Danielsson, Uno. Naturskydd i Sodra Kalmar Ian [Protection of natural beauty 

 in southern Kalmar (Sweden).] Skogen 6: 17-22. 5 fig. 1919. 



175. Darnell-Smith, G. P. Dry rot in timber. Australian Forest. Jour. 2: 314-316. 

 1919. — A brief discussion of the characters of some dry rot fungi and measures for their con- 

 trol. Creosote and tar are effective, but their odor and color restrict their use. Boric acid 

 and magnesium fluosilicate are strongly recommended. Wood-preserving oil, prepared from 

 kerosene shale, is effective if the ventilation is good. — C. F. Korstian. 



