CURRENT LITERATURE 



763 



tain national forest. 

 Harbor, Maine, 1917. 



64 p. il. Bar 



FOREST UTILIZATION 



I.nmber industry 



British Columbia Dept. of lands Forest 

 branch. Directory of lumber dealers 

 stocking British Columbia woods and 

 lumber wholesalers handling British 

 Columbia woods in eastern Canada. 12 

 p. il. Victoria, B. C, 1917. (Bulletin 

 No. 20.) 



Sociedade nacional de agricultura, Rio de 

 Janeiro. O corte das mattas e a expor- 

 tacao das madeiras brasileiras 33 p. 

 Rio de Janeiro, 1917. 



United States Interstate commerce com- 

 mission. No. 8131, in the matter of 

 rates on and classification of lumber 

 and lumber products ; report proposed 

 by Examiner Fred H. Esch. 71 p. 

 Wash., D. C, 1917. 



Wood-using Industries 



Bryan, A. Hugh. Maple sugar; composi- 

 tion, methods of analysis, effect of en- 

 vironment. 46 p. Wash., D. C, 1917. 

 (U. S. Dept. of agriculture. Bulle- 

 tin 466.) 



Forest by-products 



Hawes, Austin F. Emergency fuel from 

 the farm woodland. 8 p. Wash., D. C, 

 1917. (U. S. Dept. of agriculture- 

 Office of the secretary. Circular 79.) 



Lockwood trade journal co., inc. Lock- 

 wood's directory of the paper, station- 

 ery and allied trade. 43d edition, 1918. 

 786 p. N. Y., 1917. 



Southern pine association. Floors of serv- 

 ice. 30 p. il. New Orleans, La., 1917. 

 WOOD TECHNOLOGY 



Jolly, N. W. Notes on the principal tim- 

 bers of Queensland. 20 p. Brisbane, 

 1917. (Queensland Dept. of public 

 lands. Forestry bulletin No. 2.) 



Jolly, N. W. The structure and identifica- 

 tion of Queensland woods. 14 p. pi. 

 Brisbane, 1917. (Queensland Dept. of 

 public lands. Forestry bulletin No. 1.) 



New South Wales Dept. of lands Fores- 

 try branch. Forestry handbook, pt. 2 : 

 Some of the principal commercial trees 

 of New South Wales, by J. H. Maiden. 

 224 p. pi. Sydney, Gov't, printer, 1917. 



United States Dept. of agriculture For- 

 est service. Guidebook for the identi- 

 fication of woods used for ties and tim- 

 bers, by Arthur Koehler. 79 p. il., pi. 

 Wash., D. C, 1917. 



AUXILIARY SUBJECTS 



Plant ecology 



Adams, J. The quantitative study of cli- 

 matic factors in relation to plant life. 

 19 p. Ottawa, Royal Society of Canada, 

 1916. 



Grazing 



Aldous, A. E. Eradicating tall larkspur on 

 cattle ranges in the national forests. ?3 

 p. il. Wash., D. C, 1917. (U. S. Dept. 

 of agriculture. Farmers' bulletin 826.) 



Aviation 



Duchene, Emile Auguste. The mechanics 

 of the airplane; a study of th6 prin- 

 ciples of flight. 230 p. il. London. 

 Longmans, Green & Co., 1916. 



Eiffel, Gustave. Nouvelles recherches sur 



^ 



^ "The Watch of Railroad Accuracy" 



In the picture is Engi- 

 neer Tom Cushing of 

 the Denver & Rio 

 Grande R.R. He carries 

 a Hamilton Watch. 



A Precision 



Instrument 



Phenomenal records of accuracy explain why the 

 Hamilton is preferred by scientific men and by rail- 

 road engineers and conductors. 



When you are weary of a faulty watch and want 

 one that keeps really accurate time, ask youi jeweler 

 to show you the Hamilton. 



Hamiltons range in price from $13.00 ($14.00 in Canada) 

 for movement alone, up to $1 50.00 for the Hamilton Master- 

 piece in 18k gold case. Thin models at $30.00, $40.00, 

 $55.00 and up. 



Write for Hamilton Watch Book, "The Timekeeper" 



It pictures and describes all Hamilton models 

 and gives you interesting watch information. 



HAMILTON WATCH COMPANY, Dept. 39, Lancatter, Pennsrlraiiia 



liirit siutnp land into Money 



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I ^^ Stump 

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Write today for 



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boolflet on 



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and marshes where horses 



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WALTER J. FITZPATRICK - - . 



Box 123 182 Fifth St.. San Francisco. Cal. ~;.\. 



la resistance de I'air et I'aviation faites 

 au laboratoire d'Auteuil ; texte et atlas 

 il., pi. Paris, H. Dunod et E. Pinat, 

 1914. 



Fage, A. The airplane; a concise scientific 

 study. 3d ed. 176 p. il. London, Chas 

 Griffin & Co., 1917. 



Loening, Grover Cleveland. Military air- 

 planes. 5th ed. 182 p. il. N. Y.. D. Van 

 Nostrand Co., 1917. 



PERIODICAL ARTICLES 



Miscellaneous periodicals 



Aerial age, Nov. 5, 1917 Technical con- 

 siderations of materials employed in 

 airplane construction, by O. Pomolio. 

 p. 331. 



American city, Aug. 1917 Afforestation of 

 municipal watershed, Baltimore, by R, 

 B. Maxwell, p. 157-8. 



Do Business by Mail 



II " [trofitable, with accurate lists ul pros- 

 p-t6 Our cal.jl<>giie contains vital iiilonDa- 

 Un on Mail Ailvertibine. Also prices and 

 quantity on 6.000 national maihng lists. 99% 

 guaranteed. Such as; 

 War Material Mfrs. 

 Cheese Box Mfrs. 

 Shoe Retailers 

 Contractors 

 Druggists 

 Write lor this valuable reference book; also 

 prices and samples of fac-simile letters 

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Ross-Gmild, innor Olive Su 



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Wealthy Men 

 Axle Grease Mfrs. 

 Auto Owners 

 Tin Can Mfrs. 

 Farmers, Etc. 



Ross-Gould 



_ Mailing 



Aviation, Nov. 1. 1917 Kiln-dried air- 

 plane woods, by U. S. Dept. of agricul- 

 ture. Forest Service, p. 461. 



