No. 3, April, 1921] FORESTRY 241 



that in order to preserve the acorns two years it is necessary to use Hauch's method the first 

 winter and to store them in dry sand the following spring and at such depth that the tem- 

 perature will remain fairly constant. — •/. A. Larsen. 



1642. Howard, A. O. The empire timber exhibition. Nature 105:691-693. 1920.— 

 Apparently a temporary exhibit (made "at time of British Empire forestry conference")- 

 Exhibits from: British East Africa, most important species being Juniperus procera — used 

 for pencils; the Gold Coast, species of Khaya (African mahoganies), Odum {Chlorophora 

 excelsa), Karkoo {Lofhira procera) ; Nigeria, various sorts; Western Australia, special mention 

 of J.irrah (Eucalyptus diversicolor) and Karri {E. marginala); Canada, especially Douglas fir 

 (Pseudotsuga Douglasii) , Sitka or silver spruce (Picea sitchensis) and basswood (Tilia ameri- 

 cana) ; British Guiana, many of value which are as yet little known ; Indian Empire, especially 

 decorative woods; United Kingdom, about seventy varieties. Several other (British) 

 countries exhibited woods. — 0. A. Stevens. 



1643. Jaccard, p. Inversion de I'excentricite des branches produite experimentalement. 

 [The experimental inversion of the eccentricity of branches.] Rev. G6n. Bot. 32:273-281. 

 2 pL, 1 fig. 1920.— See Bot. Absts. 7, Entry 431. 



1644. KoiDZTjMi, Geniti. Contributiones ad Floram Asiae Orientalis. [Contributions to 

 the flora of Eastern Asia.] Bot. Mag. Tokyo 33 : 217-223. 1919.— See Bot. Absts. 7, Entry 527. 



1645. Lecomte, Henri. Sur les principairx caracteres de structure des bois. [The prin- 

 cipal characters in wood structure.] Bull. Mus. Hist. Nat. Paris 26:166-171. 1920.— See 

 Bot. Absts. 7, Entry 326. 



1646. Leiningen-Westerburg (Graf zu). Rauchschaden und einschlagige boden- 

 kundliche Fragen. [Smoke injury and related matters of soil science.] Forstwiss. Centralbl. 

 42 : 18-93. 1920.— See Bot. Absts. 7, Entry 459. 



1647. MiYosHi, Manabu. Uber der Erhaltung einer neuen wildwachsenden hangenden 

 Varietat des Kastanienbaumes als Naturdenkmal. [Concerning a new wild chestnut with 

 weeping branches and its preservation as a natural monument.] Bot. Mag. T6k3'6 33: 185- 

 188. 1 photo. 1919.— See Bot. Absts. 4, Entry 452. 



1648. MoREiLLON, M. Influence de I'ombrage sur la valeur des gazons dans les paturages 

 boises. [The influence of shade upon the value of the grasses in wooded pastures.] Jour. 

 Forest. Suisse 70: 131-142. 1919.— See Bot. Absts. 7, Entry 39. 



1649. MouLTON, R. H. Wood that is stronger than steel. Sci. Amer. 123: 204, 212. 5 fig. 

 1920. — How thin veneers and water-proof glue have been utilized in building a new industry. — 

 Chas. H. Otis. 



1650. Mount, H. A In the wake of the woodsman. Sci. Amer. 123: 122, 137-138. 5 fig. 

 1920.— Popular.- C/ias.. H. Otis. 



1651. Mount, H. A. What about our forests? Sci. Amer. 123: 62, 73-74. S fig. 1920.— 

 Popular.— C/ias. H. Otis. 



1652. Mount, H. A. What is wrong with our paper supply? Sci. Amer. 122 : 674, 688. 

 Ifig. 1920. 



1653. MuRRiLL, W. A. Where chocolate comes from. Sci. Amer. 122: 626. 5 fig. 1920. 

 — How the cacao bean, Theobroma, is grown and made into cocoa and chocolate. — Chas. 

 H. Otis. 



1654. Ness, H. [misprinted as N. Hess]. Experiences in plant hybridization. Proc. Amer. 

 Soc. Hort. Sci. 16: 52-60. (1919) 1920.— See Bot. Absts. 7, Entry 228. 



