242 FORESTRY [Box. Absts., Vol. VII, 



1655. NiKLAS, H. Die Bedeutung der Geologie fiir die land- und forstwirtschaftliche 

 Bodenkunde. [The significance of the science of geology with relation to agricultural and 

 forest soil science.] Naturwiss. Zeitschr. Forst- u. Landw. 18: 22-35. 1920.— See Bot. Absts. 

 7, Entry 478. 



1656. NiKLAS, H. Eine landwirtschaftliche Bodeniibersichtskarte von Bayern. [An agri- 

 cultural soil survey chart for Bavaria.] Naturwiss. Zeitschr. Forst- u. Landw. 18: 62-65. 1920. 

 —See Bot. Absts. 7, Entry 479. 



1657. OsTENFELD, C. H. Bemaerkniuger om Danske traeers og buskes Systematisk 

 udvidelse. [Systematic distribution of trees and shrubs in Denmark.] Dansk Skovforenings 

 Tidsskr. 5 : 164-182. PI. 5. 1920.— The Danish basswood is not generally a forest tree though 

 it is among the earliest recognized arborescent species in the country. Three species of bass- 

 wood occur;— i. Tilia platyphylla Scop., (T. grandifolia Ehrh.). This species ishereon the 

 northern limit of its distribution. It entered Denmark during the warmer part of the post- 

 glacial period and is now retrogressive both in Denmark and Sweden, ii. Tilia corclata, Mill. 

 {T. ulmifolia Scop.; T. microphylla Vent.; T. parvifolia Ehrh.). This is hardier and more of 

 a forest tree and of more general distribution than the former, iii. Tilia cordata X -platy- 

 phylla. {T. intermedia D. b.; T. europea L.) A hybrid of rapid growth, vigorous but of 

 limited distribution. It is used chiefly for shade trees and for parks.— J. A. Larsen. 



1658. Rock, Joseph F. One government forest. Hawaiian Forester and Agric. 16: 39-40. 

 5 pi. February, 1919.— See Bot. Absts. 7, Entry 493. 



1659. Rowland, J. T. Pulp wood from Labrador. Sci. Amer. 123 : 156. 3 fig. 1920.— 

 Descriptive of a belt of timberland on the Labrador coast some 400 miles long, which is 

 accessible by navigable waterways to an average depth of about 30 miles. The timber con- 

 sists chiefly of spruce {Picea nigra) and tamarack (Larix americana) from a few inches to 

 two feet in diameter at the butt; it is suitable for pulp wood but of little or no value for any- 

 other purpose. — -Chas. H. Otis. 



1660. Sandmo, J. K. Fremtidens Traslag. [Timber trees for the future.] Tiddskr. 

 Skogbruk 28: 154-165. PI. 3. 1920.— Observations on Pinus sylvestris, Pinus gallica, and 

 Picea excelsa in the Pyrenees Mountains lead the author to conclude that P. excelsa is better 

 suited for higher elevations in Norway than Pinus sylvestris, and that P. gallica should be 

 tried out at higher elevations in Norway in an effort to find a species which will advance the 

 natural timberline. — ■/. A. Larsen. 



1661. Schuster, Matthaus. Wie soil der Land- und Forstwirt geologische Karten lesen? 

 [How shall the agriculturist and forester read geological charts?] Naturwiss. Zeitschr. Forst- u. 

 Landw. 18: 10-22. 1 fig. 1920.— See Bot. Absts. 7, Entry 480. 



1662. Secrest, Edmund. Fire protection for forest lands. Monthly Bull. Ohio Agric. 

 Exp. Sta. 5:281-286. 1920.— Some five or six counties of southeastern Ohio are specially 

 adapted for forest purposes because they cannot be profitably cleared for tillage or pasture. 

 It is estimated that 750,000 acres of this land are menaced by fire and that 300,000 acres of 

 woodland burn over at 1-10 year intervals. Protection against fire is more essential than 

 planting. The general code of Ohio contains no enactments designed to control the evil. 

 Legislation in this respect is urgently needed. Suggestions are made for the protection of 

 timber lands of Ohio against forest fires, making the township the logical unit.— i2. C. Thomas. 



1663. Springer, J. F. The twentieth-century lumber-jack. Sci. Amer. 123 : 34, 48-50. 

 4 fig. 1920.— Describes modern methods and machines.— C/ias. H. Otis. 



1664. TiEMANN, Harry D. Phenomena of drying wood. Jour. Franklin Inst. 189: 645- 

 648. / fig. 1920.— The description of a rcechanical device which illustrates the phenomena 

 of normal shrinkage, the "set" or fixation, and the increase in strength and hardness of wood 

 when it loses moisture. [See Bot. Ahs':,3. t, Entry 47(3.]— Ernest Shaw Reynolds. 



