FORESTRY. 753 



kets are discussed at some length, and tlio prices of different kinds of tind)er are 

 quoted. Fifty species of the more important timber tri'es of the islands are described 

 at considerable length, their characteristics and nses being given. 



Chapters are also given on the depredations caused by the white ant, and an 

 experiment with a nund^er of American and native woods is briefly described. 

 Oregon pine, bull ])ine, and spruce were comjiletely destroyed within .30 days, while 

 hendf>ck, California redwood, and California white cedar were practically uninjured. 

 Notes are given on the strength and weight of the more common timbers, and their 

 uses are mentioned. A brief chapter is given on the gutta-percha industry of the 

 islands, and a list is given of more than 50 species or trees belonging to the orders 

 Sapotacea^ and Urticacese, which may be expected to yield gutta-percha. The report 

 concludes with a brief list of authorities cited. 



The yield of oak high forests, Wimmenauer {Allg. Forst u. JagdZtg.,67 (1901), 

 Mai/, pp. 157-lOS; June, pp. 19.3-19S). — A brief statement is given of the oak forests 

 along the Rhine, and the value of the stand at various ages is shown. The questions 

 of rents and soil productive values are discussed at some length. The forest \'alues 

 and interest upon investments are given. The maximum value as an investment 

 seems to be attained when the trees are from 80 to 100 years old. The open stand 

 with coppice system is also considered. The increment for the system is shown and 

 the money value of different density and age is indicated. 



The cork oak, E. A. MtJLLKR {Ahhandl. K. K. Geogr. Gesell. Wien,2 [1900), No. 7, 

 pp. 75, pis. 2, chart 1; abs. in Bot. Centbl.,86 {1901), No. 9, pp. 314-316) .—Treats of the 

 natural history of the cork oak (Qiiervus suber) and gives its distribution, uses, 

 methods of handling, etc. 



Notes on the red cedar, C. Mohr ( U. S. Dept. Agr., Division of Forestry Bui. 31, 

 pp. 37, pis. 2, figs. 13, map 1). — A report is given on the red cedar, in which is included 

 Janiperus virginiana and /. barbadcnsis, the trees not being distinguished in their 

 forest and timber characteristics. The red cedar is one of the most widely distributed 

 of our forest trees, occurring from Canada to the Gulf, and westward to the limit of 

 tree growth in the Mississippi Valley. It usually occurs in rather small areas over 

 this large region, and commercial areas are found only in the southeastern part of the 

 United States. The distribution of the tree through its region of greatest production 

 is described at some length, together with notes on its uses, rate of growth, timber 

 characteristics, insect and fungus enemies, etc. 



Plantations of timber trees as a commercial speculation, J. S. Cheesbrough 

 {Agr. Gaz. New South Wales, 12 {1901), No. 6, pp. 717-720).— K statement is given of 

 the probable profit accruing from a plantation of 100 acres planted to red cedar 

 {Cedrela toona). This tree is said to mature its crop in about 40 years, at which 

 time the value of the crop at present market prices would be about 114,000 per acre 

 above all expenses. 



A new means for protecting- coniferous seedlings against white grubs, A. 

 MiLANi {Allg. Forst u. Jagd Ztg., 67 {1901), Aug., pp. 268-273, figs. 3) .—K description 

 is given of a sort of vessel in which the seedlings are grown for 6 to 8 years, when by 

 disintegration the roots are set free. The material from which it is made is porous 

 enough to admit water, does not act injuriously upon the roots, and protects them 

 until ol<l enough to withstand the grubs. 



Turpentine and rosin, W. M. Steuart {Twelfth Census United States, Census Bui. 

 126, pp. 12). — A report is given of the turpentine and rosin industry of the United 

 States, comparisons being made between the present status of those industries and 

 their condition during the period of the 5 previous census years. The nund)er of 

 establishments at present engaged in this industry, as reported in the bulletin, is 

 1,503, witli a capital of $11,847,495, which produced products vahied at $20,344,888, 

 an increase of 124 per cent in the nund)er of establishments and 151 i)er cent in the 

 value of the products over the previous census year. This industry, which is coufined 



