856 EXPERIMENT STATION RECORD. 



with the ornamental grounds. In connection with the forest belts the 

 best results have been obtained with black walnut, white pine, Euro- 

 pean larch, white ash, Scotch pine, and canoe birch. Bach of these 

 species of trees seems to be adapted to certain conditions of soil culti- 

 vation or exposure. 



The twenty-sixth convention of German Foresters (Ztschr. Forat u. Jagdw.. 81 



(1899), No. 2, pp. 99-109). — Notes are given on the meeting of the German foresters 

 held at Breslau, August 23-26, 1898. 



Forestry in Minnesota, S. B. Green (Minnesota Forestry Association, 1S9S, pp. 312, 

 pis. 60, figs. 47). — This handy little hook was prepared specially for classes in for- 

 estry in the School of Agriculture of the University of Minnesota, and is an elab- 

 oration of lectures and notes which the author has used in teaching the elementary 

 principles of forestry. The different subjects treated are embraced under the 

 following heads: Trees and tree growth, forest influences, tree planting, forest 

 management and rate of increase on trees; durability and fuel value of wood; 

 propagation, nursery work, injuries to tree growth, and descriptions of the trees of 

 Minnesota. 



Tree planting in Nebraska, E. F. Stephens (Forester, 4 (189S), No. 12, pp. 

 250-252). — Some of the problems of tree planting in this State are mentioned and 

 directions given for the proper planting of forests. The varieties of timber best 

 adapted to the conditions of this region are discussed. The author thinks that it 

 will be possible to make the growth of timber over the entire State entirely prac- 

 ticable. 



The San Gabriel forest reservation, J. H. Barber (Forester, 4 (189S), No. 12, pp. 

 240-244). — A brief description is given of this important forest reservation in south- 

 ern California, and the different forms of arborescent vegetation are enumerated at 

 some length. The principal shrubbery and aborescent vegetation of the canons 

 and mesas are described, and it is stated that the summits of the ranges are practi- 

 cally unbroken coniferous forests, the principal trees, in order of their numerical 

 importance, being: Pinus ponderosa, P. lambertiana, P. coulteri, Libocedrus decurrens, 

 and Pseudotsuga macrocarpa. 



Forests in their relation to irrigation, II. Michelson (Forester, 5 (1899), No. 1, 

 pp. 9, 10). — The results following the destruction of the forests in the Ebro and 

 Volga valleys are reported and a comparison is drawn between the conditions now 

 existing in Colorado and the above localities. 



Growth of Acacia mollissima in California, J. B. Davy (Gard. Chron.,3.ser.,24 

 (189S), No. 606, p. 10S). — A report is given of a spontaneous seedling of this tree 

 which sprang up in the Botanical Gardens of the University of California in 1895. 

 In the 3 years, without receiving any special care or cultivation, the tree attained a 

 height of 31 ft. with a spread of 24 ft. The trunk was 6 in. in diameter 8 in. from 

 the ground. It flowered sparingly for the first time in the spring of 1898. 



Selection in forestry, A. Cieslar (Cental. Gesam. Forsliv. Wien, 25 (1899), No, 2, 

 pp. 40-74, figs. 8). — Experiments are reported with seedlings grown from seed of dif- 

 ferent origin. 



Thinning of woods, J. Nisbet (Jour. lid. Agr. [London], 5 (1S9S), No. 3, pp. 292- 

 299). — The principles underlying proper forest thinning and directions for thinning 

 various kinds of forest growth are given. 



The destruction of seed of oaks and pines by Gastropacha quercus, Altum 

 (Ztschr. Forst u. Jagdw., 31 (1899), No. 1, pp. 35-44). — Notes the destruction of these 

 seeds in the ground and suggests means for preventive measures. 



Concerning the multiplicity of forms in Picea excelsa, C. Schroter ( Vrtljschr. 

 Naturf. Gesell. Zurich, 43 (1898), No. 2-3; abs. in Centbl. Gesam. Forstuu Wien, 25 (1899), 

 No. l,pp. 21-23). 



