346 EXPERIMENT STATION EECOED. 



are given. The net earnings on clean, sanded bogs were 5 times as great as on 

 semiwild bogs, the increase in yield 4 times as great, and there was a great 

 decrease in the cost of harvesting. 



Ginseng- and golden seal growers' handbook, J. H. Koehler {Wausau, Wis., 

 1912, pp. VII+116, pis. 111). — A popular handbook of information relative to 

 the history, uses, market, commercial value, culture, diseases, and insects of 

 ginseng, with briefer reference to the golden seal. The subject matter is 

 based upon the author's experience as a grower as well as on the investiga- 

 tional literature on the subject. 



Status and prospects in ginseng industry, M. G. Kains {Amer. Agr., 89 

 (1912), No. 21i, p. 755). — ^A note on the present status of ginseng culture in the 

 United States. 



Lavender cultivation, J. Knight (Jour. Dept. Agr. Victoria, 10 (1912), Wo. 5, 

 pp. 316-321, figs. 5). — A poDular account of lavender culture and the oil ex- 

 traction in Victoria. 



A practical handbook of trees, shrubs, vines, and herbaceous perennials, 

 J. KiRKEGAARD (Boston, 1912, pp. 407, pis. 60, figs. 3). — The larger part of 

 this work, which is offered primarily as a reference book of hardy ornamental 

 trees and plants, is given up to a tabular description and classification of 

 species, including notes on their important characteristics, uses, and treat- 

 ment. In addition to the descriptions many of the uncommon or partially 

 known species and varieties are illustrated. Other features of the work include 

 planting lists and plans, general information relative to planting operations, 

 and notes on rose culture and lawn making, together with lists of trees and 

 plants for special purposes. 



An article by H. T. Fernald on The Insect Pests of Shade Trees and Shrubs 

 is also included. 



Lawn soils and lawns, O. Schbeiner, J. J. Skinner, L. C. Corbett, and F. L. 

 MuLFORD (U. 8. Dept. Agr., Farmers' Bui. Ji9-'f, pp. JfS, figs. 19). — This com- 

 prises an adaptation with revisions of the subject matter in Farmers' Bulletin 

 248 (E. S. R., 17, p. 976) and Bureau of Soils Bulletin 75 (E. S. R., 24, p. 

 712). 



FOKESTRY. 



Forest conditions in the northern Ozarks of Arkansas, W. W. Bennett 

 (Forest Club Ann. [Univ. Nehr.], 4 (1912), pp. 61-67). — A descriptive account 

 of forest types occurring in the northern Ozarks. 



Notes on forest conditions in northwestern Nebraska, R. J. Pool (Forest 

 Chih Ann. [Univ. Nehr.], Jf (1912), pp. 51-60, pis. 3). — A descriptive account 

 of forest types occurring in northwestern Nebraska. 



Trees of Omaha, S. V. Fullaway, Jr., and W. R. Chapline, Jr. (Forest Club 

 Ann. [Univ. Nebr.], 4 (1912), pp. 2.'f-38). — A contribution to the knowledge of 

 the native and exotic trees of Nebraska, consisting of a list of 171 species, of 

 which 38 are native to the State. The scientific and common name, the maxi- 

 mum diameter and height, and the native habitat of each species are given. 



The catalpas and their allies, H. Garman (Kentucky Sta. Bui. 164, PP- 

 203-223, pis. 9, figs. 8). — The author calls attention to the characteristics dis- 

 tinguishing the western catalpa (Catalpa speciosa) from the southern catalpa 

 iC. bignonioides) . Consideration is also given to the importance of the western 

 catalpa as a wood for fence posts and railway ties, propagating and growing 

 the trees, rate of growth, characteristics of the wood, and enemies of the 

 catalpa. Brief descriptive notes are also given of some related species, 

 including the trumpet creeper (Tecoma radicans), the cross vine (Bignonia 



