484 



FORESTRY AND IRRIGATION 



October 



posedly inexhaustible supply has 

 dwindled to so small and definite a 

 quantity that the large timber-using 

 industries especially are becoming 

 concerned for the future. Economic 

 conditions also are rapidly becoming 

 more stable, and for almost the first 

 time the industrial world is now able 

 to consider the future. There is, in 

 consequence, a marked increase in 



wood preservation, and this is particu- 

 larly true of creosoting But notwith- 

 standing these facts, the production of 

 creosote has so far failed to keep pace 

 with the growing demand that con- 

 tracts have already been given for the 

 domestic production of the next two 

 years ; and it is certain that the amount 

 now imported considerably exceeds 

 that produced in the United States. 



RECENT 



PUBLICATIONS 





mi* "*W<y. 



Utilization of Tupelo. Circular No. 40, 

 U. S. Forest Service. By H. B. Holroyd ; 

 16 pp. ; illustrated. Government Print- 

 ing Office, 1906. 



It is only recently that the long, deep- 

 rooted prejudice against tupelo has been 

 proven unfounded, and, its value when han- 

 dled in the manner suitable to its peculiar 

 character, demonstrated beyond a doubt. 

 The unfavorable attitude of lumber users 

 to the wood has been largely caused by im- 

 proper methods of handling. The bulletin 

 mentioned here contains much additional in- 

 formation as to the best methods of pre- 

 paring it for market, particularly as re- 

 gards seasoning, in which, heretofore, the 

 greatest difficulties were encountered. 



Journal of the New York Botanical Gar- 

 den. August, 1906; 20 pp.; illustrated. 

 Lancaster, Pa., 1906. 



The August Journal contains an interest- 

 ing account of Prof. William R. Max 

 on's botanical collecting trip in Costa Rica, 

 and an account of work done at the tropical 

 station of the Garden, at Jamaica, together 

 with notes and comment of interest to bot- 

 anists and students. 



Indian Forester. July, 1906. Vol. XXXII., 

 No. 7. 391 pp. ; illustrated. Pioneer 

 Press, Allahabad, India. 



Much insight into Indian forest methods 

 is to be gleaned from the July issue of this 

 valuable periodical. To American foresters 

 the article on "Working Plans for Canton- 

 ment Forests" is interesting, and the de- 

 scriptions of "rest-houses," built for the 



accommodation of forest officials in their 

 tours of inspection, also contains much of 

 interest to American forest officers. 



Sub Surface Drainage of Land by Tile. 



Reprint from "Michigan Engineer." By 



Robert E. Horton. 



Mr. Horton's exposition of this subject is 

 presented with a large amount of valuable 

 data, together with suggestions of a prac- 

 tical nature, and, in addition, the technical 

 features of land drainage, .forming in all a 

 very interesting pamphlet. 



Journal of the Western Society of En- 

 gineers. Vol. XL, No. 4; August, 1906. 

 Chicago. 



The August Journal contains a number 

 of articles of more than usual interest, chief 

 among which is Mr. M. O. Leighton's pa- 

 per on High Pressure Sluicing Gates. Mr. 

 Leighton is a prominent engineer in the Re- 

 clamation Service, in charge of the hydio- 

 economic investigations of the Service, and 

 the material presented in his paper is the 

 result of considerable study and experi- 

 ence, with interesting data regarding some 

 of the plans approved for the recent irriga- 

 tion projects of the government Mr. L. E. 

 Ashbaugh contributes an interesting paper 

 on "The Assessment of Drainage Dis- 

 tricts." 



The Journal includes the papers read at 

 meetings of the Society, together with such 

 discussion as they may have evoked at the 

 time of presentation. In the case of Mr. 

 Ashbaugh's article, the discussion includes 

 some interesting experiences of members 

 in the same line. 





