744 EXPERIMENT STATION RECORD. [Vol. 40 



of improvement in organization of financial credit for the development of forest 

 industries, and considers the proper constitution of a forest loan board and its 

 methods of operation. 



Private forestry, H. S. Geaves (L t . 8. Dept. Agr., Off. Sec. Circ. 129 {1919), 

 pp. 11; Jour. Forestry, 11 (1919), No. 2, pp. 113-121.) — A paper on this sub- 

 ject presented before the New England Forestry Conference at Boston, Mass., 

 February 24, 1919. 



An appeal for a constructive reforestation policy on private timber- 

 lands, which now supply 97 per cent of the Umber and other wood products 

 used in tin' United States and include four-fifths of the standing timber of the 

 country. The author briefly indicates several principles which must be con- 

 sidered both by the public and private bolder in developing an effective pro- 

 gram of forestry on private landa 



Forestry as a rural community project, R. S. Hosmeb (.V. 1*. Forestry, 1919, 

 April, pp. 5-9). — This paper presents suggestions relative to the cooperative 

 action of woodlot owners in regard to marketing their products and also the 

 development of community forests. 



Marketing timber from farm woodlands, P. \Y. Besi tn (Jour. Forestry, 11 

 (1919), No. 2, pp. 135-143). — A brief review ol various methods now employed in 

 marketing timber from farm woodlands. The author presents the plan of 

 cooperation between the Maryland Ion -try Department and the farmers of the 

 State for marketing timber ami other forest products, as a working basis for 

 those who have had difficulty in getting small woodland owners to practice 

 forestry. 



Seventh biennial report of the State forester of the State of California, 

 1916-1918, G. M. Humans (Hun. Rpt. StaU Forester Cal, 7 (/."/? t8), pp. 

 103, pis. 15. fig. 1). — In addition to a review of the 1918 forest Are season and 

 protective measures, practical suggestions are given on forest planting in the 

 arid regions of southern California, [Deluding a list of species recommended for 

 planting together with descriptions of the more important tree species m dif- 

 ferent sections of the State. Information is also given relative to the wood 

 utilization service and educational work of the State Board of Forestry. 



Fifteenth annual report of the State forester [of Massachusetts], F. W. 

 Kane [Ann, Rpt. state Forester Mass., 15 [1918), /.//. 54, pis. .}).— This is the 

 usual annual report relative to the administration and management of the 

 Stale nurseries and forests in Massachusetts, Including accounts of general 

 reforestation activities in the State and moth and fire control work, together 

 with recommendations relative to needed legislation. 



Preliminary report of some forest experiments in Pennsylvania, J. S. 

 Illick (Jour. Forestry, 11 (1919), No. 3. pp. „'.'<? .ill. fig. /).— The author briefly 

 outlines the experimental work conducted on the State forests in Pennsylvania, 

 and presents some data on results secured with exotic tree species. Some experi- 

 ments in forest conversion are also outlined and discussed with reference to 

 their present status. 



Critical observations concerning the mechanical theory of diameter growth 

 in trees, P. Jaccakd {But. Soc. Vaud. Bci. Nat., 51 [1917), No. I'M, pp. :: 1 

 298). — In this paper the author presents further observations on the causes ><i 

 diameter growth in trees in support of his previous conclusions and in response 

 to various objections to these conclusions I E. S. K.. 34, p. 536 I. 



Tamarack for fence posts, J. .1. Ciumi.ky [Mo. But. Ohio Sta., J, [1919), No. 

 3, pp. 83-85). — To determine the value of tamarack for fence posts, the station 

 made a thorough examination of the individual posts of a number of fences in 

 those sections where tamarack has been used for this purpose in tin- past. 



