FORESTRY. 375 



A second and very important cause is a disease due to an unknown cause which 

 produces exudations on the lower part of the trunk and roots. A review is given of 

 the various attributed causes of this disease and the opinions of a number of investiga- 

 tors are summarized. Chapters are given on the utilization of the bark and wood of 

 the chestnut, and suggestions made for its more conservative management. The 

 paper concludes with a list of about 50 references to the literature of the subject, 

 which is appended as a bibliography. 



On the reestablishment of chestnut forests, A. Prunet (Bui. Mens. Off. Ren- 

 Si iijm mi nts Agr., 3 (1904), A T o. 5, pp. 536-541)- — Attention is called to the destruction 

 of chestnut trees through the disease known as "black foot" or "ink disease." For 

 the reestablishment of the forests the author suggests planting trees that have been 

 grafted upon resistant stock, and for this purpose he recommends grafting on other 

 species of chestnut, on the American chinquapin (Castanopsis chrysopfiylla), and also 

 upon certain species of oak which have been demonstrated as suitable stock for that 

 purpose. 



The timber of the Edwards Plateau of Texas, W. L. Bray ( U. S. Dept. Agr., 

 Bureau of Forestry Bid. 49, pp. 30, pis, 5, map 1). — This bulletin gives an account of 

 the timber of the Edwards Plateau of Texas, and discusses its relation to climate, 

 water supply, and soil. After describing the region, which lies east of the Pecos 

 Valley and north of the Rio Grande River, an account is given of its climatic condi- 

 tions, water supply, etc., and the vegetation of the region is described at some length. 



Progress report of forest administration in Coorg, C. D. McCarthy (Forest 

 Dept., Coorg, India, Rpt. 1902-3, pp. 28). — A report is given on the forest administra- 

 tion for the years 1902 and 1903, with notes on the extension of State forests, their 

 management, exploitation, gross yield of products, and the financial returns. The 

 reserved and protected forests amount to nearly one-third of the entire area of the 

 district. 



Forestry in Japan (Japan in the Beginning of the 20th Century. Tokyo: Imperial, 

 Japanese Commission to the Louisiana Purchase Exposition, 1904, pp- 224-288). — The 

 forest area of Japan is said to be about 56,563,000 acres, or 59 per cent of the total 

 area of the islands. Of this area 21 per cent is pure coniferous forest, 25 per cent 

 deciduous, 45 per cent mixed, and the remainder thinly stocked or waste lands. 

 The bamboo areas, which form a feature in the forest system of Japan, are of 

 extremely limited extent, and are said to show little signs of enlargement in the 

 near future. A description of them has therefore been omitted. 



The ownership of the forests and relative extent of different classes are given as 

 follows: Government forests 32,156,000 acres, imperial forests 5,122,000 acres, and 

 private forests 19,281,000 acres. The distribution of the forests, sylvicultural features, 

 etc., are described, and notes given on the more important species of trees found in 

 the different forest zones. The various systems of management are described and 

 the results of elaborate investigations which have been inaugurated by the govern- 

 ment for the study of forest conditions and improvements are shown. 



In the government forests rotations of from 40 to 200 years have been adopted, 

 dependent upon the species grown, and private owners are being urged to adopt 

 similar methods. Encouragement is given to public and private forest planting so as 

 not only to reproduce the forest as it matures, but also to replant extensive areas 

 which were deforested after the political restoration. The only figures available are 

 for the government and imperial forest plantings for the decennial period ending 

 1901. During this time there was an extension of the forest area by 2,805,000 acres. 



The financial returns from the state forests for the year 1901 were in excess of 

 61,01)0,000, rating the Japanese unit of value at 50 cts. The tables given show a 

 progressive net profit for the time covered, as well as an increased revenue per unit 

 of area. 



