442 



AMERICAN FORESTRY 





1 



-'^SSiSl^X~-.:.The Wulch^of RaitmaJ Ac'cur 



Hamilton lljatch 



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di 



No need to add or subtract a 

 minute or so to or from the time a 

 Hamilton tells. The Hamilton is depend- 

 ably accurate. It tells true time all the time. 

 Ask any reputable jeweler about Hamilton 

 Accuracy and he will unqualifiedly recommend it. 



Hamilton Watches are made in many models at §17 00 



$25.00. $28.00, $40.00, $50.00, $80.00, and so on 



up to $150.00, which your jeweler can show 



you in cased watches and in movements 



alone, to fit your present watch case, $12.25 



($13.00 in Canada) and up. 



Write for Hamilton Watch Book, 

 "The Timekeeper." 



It pictures and describes the various 

 Hamilton models for men and women, and 

 tells facts worth knowing about watches. 



HAMILTON WATCH COMPANY 



Dept. 39 



Lancaster, Pennsylvania 





Expert 

 Service 



Is Demanded 



by Modern 



Business 



Methods 



S. B. Detwiler 



FOREST ENGINEER 



Commercial Trust Bldg. 

 PHILADELPHIA, PA. 



Forest Engineering 



is expert service in the application of scientific 

 and economic engineering knowledge and ex- 

 perience to forests and their products. It is 

 essential to modern timberland ownership 

 and operation, and equally important to the 

 distributor and consumer of wood. 



The Field Covers 



Technical Advice and 

 Practical Service 



in acquiring, estimating and mapping timber; in 

 making valuations; in management; in selling 

 either the stumpage or manufactured product ; 

 in selecting grades or kinds to meet your serv- 

 ice requirements; and in preservative treat- 

 ment to prevent decay. 



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Mississippi Valley lumberman, May 26, 

 1916. — Clearing stump lands ; Univer- 

 sity of Wisconsin conducts e.\periments 

 in stump pulling, p. 35. 

 National coopers' journal, June, 1916. — 

 How turpentine workers in southern 

 forests extract "spirits" and resin from 

 pine, p. 12. 

 Packages, May, 1916.— South American box 



market, by R. E. Simmons, p. 14. 

 Paper, May 31, 1916.— The manufacture 

 of sulphate pulp, by Carl Moe, p. 13-14. 

 Pioneer western lumberman. May 15, 

 1916. — An object lesson in creosoted 

 wood block paving, p. 7-8. 

 Pulp and paper magazine, April 15, 1916. — 

 The conservation of our forest resources, 

 by R. O. Sweezey, p. 179-80; Pulp 

 paper in India, by H. R. MacMillan, p. 

 181-3; Cork forests, by J. Russell 

 Smith, p. 187. 

 'St. Louis lumberman. May 15, 1916. — A 

 year's work in Forest service industrial 

 investigations, p. 12; Trade marking 

 lumber, by E. A. Hamar, p. 15; Our 

 forests as a permanent national asset; 

 report of the committee on forest re- 

 sources. National conservation con- 

 gress, p. 60-2; A year's work at the 

 Forest products laboratory, p. 64-5. 

 St. Louis lumberman, June 1, 1916. — Trade- 

 marked lumber, by F. A. Good. p. 

 70C-E; A spruce drive in the Franken- 

 wald, by John B. Woods, p. 70G. 

 Southern lumberman, June 3, 1916. — The 

 lumber production of the United States 

 in 1915. by Jesse C. Nellis, p. 26-26A ; 

 Opportunity for lumber in foreign 

 markets, by Edward E. Pratt, p. 26F-H. 

 Southern lumberman, June 10, 1916. — Hard- 

 woods of Texas, p. 25-6. 

 Timber trades journal. May 13. 1916.— The 

 felling of trees by machinery, p. 911. 

 Timberman, May, 1916.— South African 

 lumber trade, by H. R. McMillan, p. 

 27-8; Wood used in concrete structure, 

 by Ben W. Reed, p. 46; Railways in 

 ^ India, by H. R. MacMillan, p. 48A. 

 United States daily consular report. May 

 26, 1916.— Chinese plant trees on arbor 

 day, by Julean Arnold, p. 765. 

 United States daily consular report. May 

 29, 1916.— Season for buying shooks 

 in western Greece, by A. B. Cooke 

 p. 793. 

 United States daily consular report, May 

 31, 1916. — Opportunities to obtain log- 

 wood supplies, by Frank Anderson 

 Henry, p. 812. 

 United States daily consular report, June 

 1, 1916. — Problems of .American lum- 

 ber industry, by E. E. Pratt, p. 824-5. 

 West Coast lumberman, June 1, 1916. — An- 

 nual cut of 5,000,000.000 feet can be 

 maintained indefinitely, by Burt P. 

 Kirkland, p. 27, 30. 

 Wood preserving, Apr.-June. 1916.— Treat- 

 ing ties for the G. R. & L, P. L., & P. 

 M. R. R,, p 27-9; Decay: an important 

 factor in plant management, by George 

 M Hunt, p. 30-1; An experimental 

 wood-preserving laboratory, by W. G. 

 Mitchell, p. 33-5; The economic use 

 of cross ties, p. 41-3 ; Coal-tar and its 

 products, p. 47-8. 

 Pnrcst Journals 



P.lltmorean, June. 1915. — Silvicultural prob- 

 lems on the Pennsylvania state forests, 

 by George A. Retan, p. 16-17. 

 Can.'idian forestry journal, May, 1916. — 

 Forests and the prairie provinces, p. 

 511-14; Why action is needed on the 

 Trent watershed, p. 516-19; Proper 

 care of shade trees, by Carl Bann- 

 wart, p. 520; Forest conservation as 

 a war measure, by Clyde Leavitt, p. 

 527-30; Cork forests, by J. Russell 

 Smith, p. 531 ; The Russian forests 



