No. 1, August, 1920] FORESTRY 29 



some rooted 40 feet below high tide. The conclusion is that there has been gradual depn s- 

 sion of a forested roeky coastal plain, forming quiet lagoons in which f lie trees became embed- 

 ded in the clay; then a tilting movement brought in the open sea, and Teredo bored the trunk*, 

 causing them to break off at the clay surface. — Winfield Dudgeon. 



207. Lindbeiig, Ferd. Da skogen snoar in. [When the forest is snowed in.] Skogen 

 6:128-132. 4 fig. 1919. 



208. Maas, J. G. J. A. Gewijzigde methode voor veldproeven met Hevea. [Other meth- 

 ods for field experimentation with Hevea.] Arch. Rubbercult. Nederlandsch-Indie 3: 233-237. 

 1919. — In this article the author sets forth a plan for the elimination of error due to the per- 

 sonal factor of the tapper in field experiments with Hevea. His plan is to have the tapping 

 rows and collecting rows perpendicular to each other, so that each tapper taps a part of the 

 trees of each collecting task. — W. E. Cake. 



209. Maas, J. G. J. A. Nog eenige kiemproeven met Hevea-zaden. [Some more ger- 

 mination trials with Hevea seed.] Arch. Rubbercult. Nederlandsch-Indie' 3 : 237-243. 1919. — 

 In preserving Hevea seed the packing material must be moist and not air tight. When Hevea 

 seeds are to be preserved for longer than one month the packing material should be moistened 

 every 3 or 4 weeks. At a temperature of 4 to 8°C. the seeds will stand a drier and more air- 

 tight package better than at ordinary temperatures. Air-tight packages however cause 

 them to lose their germinating power quickly. Merely ensilaging Hevea seed in the ground 

 seems to be good for preserving the seeds on an estate for a short period like a month. Treat- 

 ment with water at about 50°C. resulted in increased germination energy, and a slightly im- 

 proved germination. Sprinkling with warm water at 45°C. increased the rapidity of germina- 

 tion a little but had practically no effect on the germination per cent. — W. E. Cake. 



210. Mackay, H. Conifers in Victoria. Australian Forest. Jour. 2: 265-267. 1919.— 

 Summary of a paper on "Coniferous plantations in Southeastern Australia," read before the 

 first Inter-State Conference on Forestry, embodying the experience of that State in the es- 

 tablishment of exotic conifers over a period of 34 years. Thirteen conifers indigenous to North 

 America are found in the list. — C. F. Korstian. 



211. Mackay, H. Treatment of indigenous hardwoods. Australian Forest. Jour. 2: 

 19-20. 1919.— Extract from a paper read before the first Interstate Conference on Forestry 

 at Sydney, November, 1911, in which the silvicultural management of eucalyptus forests is 

 briefly discussed. Wherever the standing crop is fairly uniform in age and size, a clear cut- 

 ting in sections, leaving, in addition to seed trees, only trees fit for piles and girders, is advo- 

 cated. — C. F. Korstian. 



212. Madelin, J. Les cedres du Liban. [The cedars of Lebanon.] Rev. Eaux et Forets 

 57 : 275-276. 1919.— The cedars of Lebanon, formerly regarded by the natives as divine beings 

 in tree form, flourish only at El-Herze' at an altitude of over 2200 meters. Some of them are 

 over a hundred feet high and the largest is 3 feet in diameter. The few trees which still sur- 

 vive have suffered severely at the hands of tourists and should be protected from further 

 damage. — S. T. Dana. 



213. Main, J. M. Eden and its timber resources. Australian Forest. Jour. 3: 48-49. 

 1920.— A note on the forest resources adjacent to the town of Eden on the South Coast of 

 Australia with a list of the principal timber species of eucalyptus and their uses. — C. / . 

 Korstian. 



214. Martin, Percy F. Great forests of South America. Canadian Forest. Jour. 15: 

 264-266. 1919.— Four types of timber are recognized : small scrubby forests of dry temperate 

 or sub-tropical regions; good forests of Antarctic beech and a few conifers of temperate re- 

 gions in the Andes; the fresh and salt-water swamps of mangroves and species with soft 

 woods; the tropical rain forest of a great variety of hardwoods. — E. N. Munns. 



