No. 3, January, 1922] FORESTRY 155 



1017. Kress, Otto, Sidney D. Wells, and Vance P. Edwardes. American pulpwoods. 

 Paper Indust. 1 : 302-3G9. 1919. — A description of 46 woods is given, including data on range, 

 common names, weight, fiber length, and yield and other pulp characteristics. — //. A'. Lee. 



1018. KuBELKA, A. Neuzeitliche Forstwirtschaft. [Modern forestry.] Wiener AUg. 

 Forst- u. Jagdzeitg. 39: 9:3-94. 1921. — The author discusses the experiences and opinions of 

 others in regard to the "continuous" system of forest management (Dauerwaldwirtschaft), 

 as set forth in the author's book, Modcrnc Forstwirtschaft, and shorter articles in periodicals. 

 The system is essentially natural and aims at continual maintenance of good forest cover, 

 high yield per acre, and natural regeneration. It is the antithesis of clean cutting and plant- 

 ing systems, and denies the necessity of a set rotation and fixed annual fellings. — F. S. Baker. 



1019. Nechleca, a. Dritter Nonnenbrief aus Bohmen. [Third letter on the nun moth in 

 Bohemia.] Wiener Allg. Forst- u. Jagdzeitg. 39: lOG-107. 1921. — This letter deals chiefly 

 with the results of experiments with chlorophosgene against the nun moth { Liparis monacha) , 

 as reported in Ceskoslovensky Lesnfk (Czechoslovenian Forester) no. 33, 1920. Sufficient gas 

 was used to make a stream CO m. wide and 200 m. long, carried on a gentle wind through a badly 

 defoliated spruce stand. The strength was sufficient to kill a man in 3 minutes. Two hours' 

 application had no other effect than temporarily paralysing large numbers of the male moths; 

 other insects were also unharmed. The current year's growth of spruce was, however, killed. 

 It appears that a special gas must be used which has a positive toxic effect on the moths and 

 which is lighter than chlorophosgene, which fails to reach the treetops effectively. [See 

 also following entry.] — F. S. Baker. 



1020. Nechleba, a. Zweiter Nonnenbrief aus Bohmen. [Second letter on the nun moth in 

 Bohemia.] Wiener Allg. Forst- u . .Jagdzeitg. 39 : 8C-S7. 1921 . — A general discussion is presented 

 of the great increase in the nun moth (Liparis monacha) in Bohemia from 1917 to 1920, illus- 

 trated with maps showing the partly injured and entirely defoliated areas for each of the 4 

 years. [See also preceding entry.] — F. S. Baker. 



1021. Secrest, Edmund. Forest planting in Ohio. Monthly Bull. Ohio Agric. Exp. Sta. 

 6: 51-58. 1921. — The necessary information desired by land owners who wish to establish 

 woodlands and shelter belts by planting is briefly given. A limited number of species of forest 

 trees are briefly evaluated. Reference is made to most desirable types for post timbers and 

 a more extended discussion is given of conifers and evergreens. Care is taken to include 

 mention of species which are not adapted for planting in Ohio. — R. C. Thomas. 



1022. Shepherd, J. F. Black-wattle bark for tanning. New Zealand Jour. Agric. 21: 

 267-269. 1920. 



1023. SiMMONDS, J. H. Private forestry. New Zealand Jour. Agric. 21: 271-282. 3 pi. 

 1920. — The author describes the various species of forest trees planted 1870-1885. The most 

 promising introduced trees are the conifers from western North America and the eucalyptus 

 from Australia and New Zealand. — N. J. Giddings. 



1024. Teichmann. Ueber Lupinenanbau. [Lupine culture.] Wiener Allg. Forst- u. 

 Jagdzeitg. 39: 100-101. 1921. — Clean cutting with complete utilization of litter in the region 

 of Trpist, western Bohemia, raises an exceptionally difficult problem in forest planting. 

 Under these circumstances the soil, derived from slate, bakes badly in summer and planted 

 spruce trees grow poorly. (Southwestern slopes show best results, the litter being too scant 

 to pay for removal and the soil is therefore noticeabh^ lighter from the additional humus.) 

 Weeds quickly claim such cut over lands and compete with the spruce. Plowing to kill the 

 weeds and subsequent care to prevent reinvasion failed to improve the situation. Fertilizing 

 with ammonium sulphate caused an immediate improvement the 1st year which, however, 

 disappeared the 2nd. Sowing lupine seed rather lightly among the planted trees resulted 

 in darker green needles within 2 years; within 6 j'cars the results were excellent, height growth 



