570 



AMERICAN FORESTRY 



HERE is 

 keen satis- 

 faction in 

 planting a tree and 

 watching it grow 

 strength and 

 beauty year after 

 year. If you wish 

 to have great, large-leaved 

 shade trees or rich, heavily- 

 laden fruit trees you will do 

 well to specify Thorburn's 

 Tree Seeds. 



For over a hundred years 

 the nameThorburn has meant 

 quality to every one growing 

 trees, flowers, vegetables or 

 grass. 



Thorburn's Seeds are what you 

 should specify because they make 

 your ejfforts successful. It pays to 

 buy seeds which have won a reputation 

 for invariable excellence. 



Write to-day for catalog and 



information which will be 



promptly furnished 



on request. 



J. M. Thorburn & Co. 



Established 1802 



53 S. Barclay Street 



THROUGH TO 



54 Park Place New York 



"Thorburn's Seeds are Reliable Seeds" 



PERIODICAL ARTICLES 



Miscellaneous periodicals 



Aerial age, July 22, 1918. A grumble 

 about glue, by M. O'Gorman, p. 924. 



Aerial age, Aug. 12, 1918. The grain of 

 wood with special reference to the 

 direction of the fibers, by A. Koehler, 

 p. 1068-70. 



American sheep breeder, July, 1918. Im- 

 provement and maintenance of far 

 western ranges, by J. T. Jardine, p. 

 427-30. 



Aviation, July 15, 1918. Balsa wood in 

 Costa Rica, p. 871. 



Botanical gazette, July, 1918. Significance 

 of resinous tracheids, by S. J. Record, 

 p. 61-7; Bisporangiate cones of Pinus 

 montana, p. 68. 



Bulletin of the Pan American union, June, 

 1918. The Hawaii national park, p. 

 794-803. 



Country gentleman, July 13, 1918. Black 

 walnut for gunstocks, by W. R. Mat- 

 toon, p. 2, 26. 



Country gentleman, July 20, 1918. A real 

 idea; soldiers on cutover land, p. 12. 



Gardeners' chronicle, June 22, 1918. 

 London trees, by A. D. Webster, p. 251. 



Gardeners' chronicle of America, July, 

 1918. The weeping beech, p. 198; The 

 Japanese maple, p. 198; The value of 

 tree stumps for fuel, p. 201. 



Geographical journal, June, 1918. The 

 forest region of northeast Russia and 

 its importance to Great Britain, by 

 E. P. Stebbing, p. 359-74. 



Journal of the Franklin institute, Aug., 

 1918. Dyestuffs, by L. J. Matos, p. 

 187-209. 



Journal of the New York botanical gar- 

 den, Apr., 1918. Tree planting for 

 forests, by S. W. Allen, p. 82-6. 



Munsey's magazine, Aug., 1918. Building 

 our wooden fleet, by R. G. Skerrett, p. 

 517-25; Treenails, by L. C. Everard, 

 p. 525-8. 



New country life, July, 1918. The picture 

 story of our principal national parks, 

 by R. S. Yard, p. 45-68. 



New Zealand journal of agriculture, June, 

 1918. Private forestry, by J. H. Sim- 

 monds, p. 334-53; Killing trees with 

 arsenic, p. 357-8. 



Oregon voter, July 27, 1918. Fall of the 

 spruce, p. 19-22. 



Phytopathology, July, 1918. Host relation- 

 ships of the North American rusts, 

 other than Gymnosporangiums, which 

 attack conifers, by A. S. Rhoads and 

 others, p. 307-52. 

 Queensland agricultural journal, July, 1918. 

 The algaroba tree, p. 28-9; Splitting: 

 shingles, p. 50-1. 



Scientific American, June 22, 1918. Bone 

 and sinew for our aircraft; winning 

 the world war in the forests of Ore- 

 gon and Washington, by H. E. Thomas, 

 p. 564, 577. 

 Scientific American, June 29, 1918. 

 Wooden ships versus the submarine, 

 p. 588-9. 



Scientific American supplement, June 8, 

 1918. Tree planting to control snow 

 and wind, by W. C. Palmer, p. 356-7. 



Scientific monthly, June, 1918. Gall in- 

 sects and their relation to plants, by 



E. P. Felt, p. 509-25; Technical prob- 

 lems in national park development, by 



F. A. Waugh, p. 560-7. 



Sunset magazine, June, 1918. Wooden 

 span ; how the Pacific Coast is trans- 

 forming fir trees into ships, by W. V. 

 Woehlke, p. 36-8. 



Travel, Aug., 1918: Uncle Sam, woods- 

 man, by H. Starr, p. 9-13, 40. 



Trade journals and consular reports 



American lumberman, July 13, 1918. Ad- 

 vises use of wood in logging locomo- 

 tives, p. 53; Some facts about the 

 walnut trees, by S. Wittenmyer, p. 55; 

 The passing of the lumber jack, p. 67. 



American lumberman, July 27, 1918. 

 Methods of handling depreciation and 

 investment in lumber accounting, by 

 W. Compton, p. 48-9; Sam Bunyan, 

 son of John, by R. Y. Stuart, p. 49. 



American lumberman, Aug. 10, 1918. 

 Wood must stop the gap in the na- 

 tion's coal supply, p. 1 ; The present 

 and future problems of the lumber in- 

 dustry, p. 38-9. 



American lumberman, Aug. 17, 1918. 

 Sawdust briquettes for fuel, p. 27; The 

 preparation of spruce for airplane 

 material, p. 34. 



Barrel and box, July, 1918. Waste wood 

 for fuel purposes, p. 40. 



Canada lumberman, Aug. 1, 1918. Pacific 

 Coast products in world markets, by 

 T. D. Pattullo, p. 85 ; Piers, booms and 

 log drive in lumbering, by R. Morris- 

 sette, p. 88-90; Organize to perpetuate 

 forest revenues, by W. F. V. Atkinson, 

 p. 93-4 ; New Brunswick taking stock 

 of timber, by T. G. Loggie, p. 97; Big 

 impetus given to wooden shipbuilding, 

 by E. Woodworth, p. 109-13; Lumber- 

 ing operations in Bruce peninsula, by 

 W. J. VanDusen, p. 113-14; New cut- 

 ting tool for felling trees, p. 116. 



Engineering and contracting, July 17, 1918. 

 Grading and track laying for logging 

 railroad with a ditcher, p. 58-9. 



Engineering news-record, July 18, 1918. 

 Wood-stave pipe built of local hem- 

 lock in North Carolina, by D. R. 

 Shearer, p. 138. 



Engineering news-record, Aug. 1, 1918. 

 Facing leaky rock fill dam with tim- 

 ber planks, by G. M. Bull, p. 229-31. 



Hardwood record, July 25, 1918. The 

 wood of chairs, p. 23; Maple by states 

 and industries, p. 23 ; Methods of com- 

 puting costs of kilndrying lumber, by 

 T. D. Perry, p. 33-4. 



Hardwod record, Aug. 10, 1918. Use of 

 yellow poplar by industries, p. 21 ; 

 Balsa wood for airplanes, p. 21 ; The 

 timber of British Guiana, by T. B. 

 Percival, p. 32a-b; Time to begin 

 planting trees, p. 32b. 



Journal of the American leather chemists' 



