842 EXPERIMENT STATION RECORD. [Vol.36 



Between Specific Characters of the Tasmanian and Australian Eucalypts, by 

 R. T. Baker and H. G. Smith (pp. 108, 109) ; The Cotyledons and Seedling 

 Leaves of the Eucalypts, by C. Hall (pp. 109-113) ; and Notes on the Evo- 

 lution of the Genus Eucalyptus, by E. C. Andrews (pp. 113-115). A summary 

 by the investigating committee as a whole is also included. A bibliography of 

 related literature is appended. 



Euphorbia tirucalli, G. Scasseulati-Sforzolini (Agr. Colon. [Italyl, 10 

 {1916), Nos. 4, pp. 161-186; 5, pp. 217-234; 6, pp. 284-308, pis. IS, figs. 4)-— A 

 monograph on this latex-yielding species with reference to its botany and dis- 

 tribution, products, and economic utilization. 



Manurial experiments with Hevea rubber, R. D. Anstead {Planters' Chron., 

 11 {1916), Nos. 12, pp. 132-135; 13, pp. 144-146) .—The results are given of 

 manurial experiments with rubber conducted at the Kerala Estate during the 

 years 1914-15. The results for the two years indicate an increased yield from 

 manure properly applied. It is concluded, however, that the experiment must 

 run for several years to determine whether the increased yield will offset the 

 cost of manuring. 



[Tree culture in the sand hills section], J. Cowan {Nebraska Sta. Bui. 156 

 {1916), pp. 7, 8, 55-60). — Some of the more practical results of tree planting 

 experiments conducted at the Valentine Substation are reported, together with 

 suggestions dealing with planting operations, cultural methods, and varieties. 



The experiments with trees, which have been conducted since 1911, show that 

 the best quick-growing trees are Norway poplar, cottonwood, and box elder. 

 Of the slower growing deciduous trees the American elm and honey locust have 

 done best. The Russian olive has given fair satisfaction as a lawn tree. 

 Of the conifers bull pines have given the best results. For tree culture in the 

 Band hills country clean cultivation and the preservation of an earth mulch 

 was found to be more essential than watering. 



The forestry situation in Virg'inia, R. C. Jones {Va. Geol. Com., Off. State 

 Forester, Forestry Leaflet 9 {1916), pp. 8, figs. 7). — A brief statement relative 

 to the forest situation and important forest problems of Virginia. 



The aims of the new state forestry department, R. C. Jones {Va. Oeol. 

 Com., Off. State Forester, Forestry Leaflet 6 {1916), pp. 3-17).— An outline of 

 the proposed activities of the Virginia state forestry department. 



Observations on the woods of the Guindos hacienda, F. Albebt {Bol. 

 Basques, Pesca i Caza, 3 {1915), No. 1-4, pp. 320, pi. 1, figs. 6).— This work 

 comprises as a whole observations and data covering some seven years on the 

 forest and woodlands on a large hacienda in Chile. The information given 

 includes a description of the various tracts and the species comprising them, 

 a large number of tree measurements, and conclusions relative to the man- 

 agement of these woods. 



Contribution to the distribution of the wild-growing ligneous plants of 

 Switzerland. — III, Distribution of woody species in the Canton of Grisons, 

 P. K. Hageb {Erhebungen iiber die Verbreitung der wildicachsenden Holzarten 

 in der Schweiz. Ill, Verbreitung der loildwachsenden Holzarten im Vorder- 

 rheintal {Kanton Oraubiinden). Bern: Schweiz. Dept. Innern, 1916, pp. 331, 

 pla. 6). — This is the third of a series of studies dealing with the native woody 

 flora of Switzerland, conducted under the direction of the Swiss Inspection of 

 Forests, Hunting, and Fisheries and the Botanical Museum of the Federal 

 Polytechnique School. The present study takes up the ligneous plants of the 

 Canton Grisons. 



Part 1 discusses the geography, orography, geology, and climate of the 

 region; part 2 comprises a descriptive catalogue of the woody species; part 3 



