244 EXPERIMENT STATION RECORD. [Vol.36 



posed as a standard common name for Q. morehus, a tree of the Sierra Nevada 

 foothills and the north coast ranges of California. 



I, Timbers of British North. Borneo. II, Minor forest products and jungle 

 produce, P. W. Foxworthy {Govt. Brit. North Borneo Dept. Forestry Bui. 1 

 (1916), pp. 67+VII). — A descriptive account of the timbers of North Borneo 

 and their uses, including also notes on minor forest products and jungle 

 produce. 



Trees in medicine, J. Foote {Amer. Forestry, 22 {W16), No. 27.5, pp. 6^8-653, 

 flgg ,9)_ — A popular account of some medicinal uses of substances obtained from 

 trees. 



Marketing of woodlot products, J. W. Calland (Ohio Sta. Bill. 302 {1916), 

 pp. 41-69). — This bulletin discusses methods of measuring woodlot products, 

 estimating the amount of timber in the woodlot, principal products and prices, 

 cost of lumbering, determining the stumpage value of timber, uses of the prin- 

 cipal kinds of woods and prices, and cooperative marketing. 



Service tests of treated and untreated fence posts, H. Bkadley {Bui. Amer. 

 Ry. Engin. Assoc, 18 {1916), No. 187, pp. 39-53, figs. 4; Reprint, pp. 15, figs. 4).— 

 In cooperation with the Forest Service of the U. S. Department of Agriculture, 

 experimental treated and untreated fence posts were installed during the period 

 1906 to 1909 at the South Carolina Agricultural Experiment Station, Clemson 

 College, S. C. ; Alabama Polytechnic Institute, Auburn, Ala.; North Louisiana 

 Agricultural Experiment Station, Calhoun, La. ; University of Minnesota. Zum- 

 bra Heights, Minn. ; Iowa State College, Ames, Iowa ; and Maryland Agricultural 

 College, College Park, Md. The present report briefly describes the experiments 

 and presents the results thus far secured. 



The data show that nondurable species, especially in the South, should have 

 at least a light top treatment in addition to the heavier butt treatment. The 

 results as a whole clearly indicate that a good open-tank treatment of fence 

 posts with creosote will give satisfactory results in preventing decay in most 

 of the nondurable species. Posts treated with water-gas-tar creosote and water- 

 gas-tar have stood up very well thus far, the creosote giving somewhat better 

 results. Brush treatments, soaking in cold oil, and double-tank treatments 

 where asphaltum was used as the heating media in the hot bath were not very 

 effective in preventing decay in nondurable species. Charring was apparently 

 of no value. Care must be taken to have the butt treatment extend well above 

 the ground line to allow for possible changes in the ground level or for care- 

 lessness in setting. The conditions seem to be more favorable for decay when 

 posts are set around yards, pig-sties, chicken yards, barnyards, etc., than when 

 set in fields, meadows, or woodlots. 



Butternut and willow decayed so readily in the tops that a heavy treatment 

 of the entire post seems advisable. 



Analyses of several of the creosotes used in the experiments are appended. 



Forest products of Canada, 1915. — Lumber, lath, and shingles {Dept. Int. 

 Canada, Forestry Branch Bui. 58 A {1916), pp. 3i).— Statistics of the production 

 of lumber, lath, and shingles by 3,239 mills operating in Canada during the 

 calendar year 1915 are reported. 



The total value of the lumber, lath, and shingles produced in Canada in 1915 

 was $69,695,477, of which lumber represented $61,919,806. 



DISEASES OF PLANTS. 



Pathological quarantines in 1915, R. K. Beattte {Abs. in Phytopathology, 

 6 {1916), No. 1, p. 95). — Quarantines for protection against the introduction of 

 injurious plant diseases, in effect at the date of publication, exclude from the 



