No. 2, September, 1920] FORESTRY 181 



1362. Kornerup A., and H. Mundt. Aske-Gavnetra. [Ash for lumber.) Dansk Skov- 

 forenings Tidsskr. 5 : 1-29. tS fig. 1920. 



1363. KttHL. Traeets Kemiske Leknologi. [The chemical composition of wood.] Dansk 

 Skovforenings Tidsskr. 4: 28-64, 110-146. 45 fig. 1919. 



1364. Lee, Laurence. Notes on the Parana pine of southern Brazil. Jour. Forestry 18: 

 57-61. 1920. — The Parana pine has a stand of about 650 billion board-feet in Brazil. The 

 wood is said to be superior to Swedish pine and even the southern longleaf pine of North 

 America. There are no resin ducts and resin accumulates only at the base of knots. At the 

 present time the lack of shipping facilities and the unfair taxes are keeping this timber from 

 the market. — E. N. Munns. 



1365. Leopold, Aldo. Determining the kill factor for blacktail deer in the southwest. 

 Jour. Forestry 18: 131-134. 1920. — A method similar to that used in estimating cattle is pro- 

 posed for obtaining data on the blacktail deer. — E. N. Munns. 



1366. Maddox, R. S. Reclamation work a vital forestry problem. Amer. Forestry 26: 

 74-76. 5 fig. 1920. — Relates particularly to conditions in Tennessee. — Chas. H. Otis. 



1367. Maiden, J. H. A critical revision of the genus Eucalyptus. Vol. IV, Part 8. P. 

 201-237, 4 pl William Applegate Gullick: Sydney, 1919.— See Bot. Absts. 3, Entry 2995. 



1368. Maxwell, Hu. The uses of wood. Wood in agricultural implements. Amer. 

 Forestry 26: 148-155. 14 fig. 1920. 



1369. McLean, R. C. Studies in the ecology of tropical-rain forest: with special reference 

 to the forests of South Brazil. I. Humidity. Jour. Ecology 7: 5-54. 1 pl., 21 fig. 1919. 



1370. Mell, C. D. The mangroves of tropical America. Sci. Amer. Supplem. 88: 388-389. 

 5 fig. 1919. — The red mangrove (Rhizophora mangle) produces the bulk of the commercial 

 bark used for tanning purposes. The bark is from three-fourths to one inch thick, of a dull 

 reddish color, somewhat fibrous and covered with a grayish cork-like cuticle, and contains 

 tannin superior to that of many other barks used for that purpose. The percentage of tannin 

 is from 25 to 36. The gathering of the bark is a difficult task. — Chas. H. Otis. 



1371. Metcalf, C. D. Logging with belt tread tractors. Sci. Amer. Monthly 1: 42-44. 

 5 fig. 1920. [Reprinted from the West Coast Lumberman.] 



1372. Minchin, A. F. Annual rings in sal. Indian Forester 46: 38-45. 2 fig. 1920 — 

 Annual rings in sal may be distinguished on a tangential cut when not possible on a radius. 

 Fresh cut stumps only can be used and a clean smooth surface is essential. Stump counts and 

 measurements of trees of known age show a very close relationship though based on a very 

 small number of trees. — E. N. Munns. 



1373. Moore, Barrington. [Rev. of: Recknagel, A. B., and J. Bentley, Jr. Forest 

 management, xiii + 269 p. , 26 figs. John Wiley & Sons : New York, 1919. Net $2.50. ] Tor- 

 reya 20 : 34-35. 1920. — The book is written for owners of forest-lands who are not professional 

 foresters. Four branches of forest management are treated: (1) mensuration; (2) regulation 

 of cut; (3) finance; (4) administration. Both the forest-owner and professional forester will 

 find the book valuable. [See also Bot. Absts. 5, Entry 1325.] — J. C. Nelson. 



1374. Mulloy, G. A., and W. M. Robertson. An analysis of logging costs in Ontario. 

 Jour. Forestry 17: 835-838. 1919. — Data on logging costs compiled from a large number of 

 reports on operations in Ontario through several years is given for 11 divisions of cost covering 

 82 detailed items. — E. N. Munns. 



