CURRENT LITERATURE 



443 



American-Grown Trees 

 and Evergreens 



Our ability to supply plants 

 of the highest quality is not 

 curtailed by the stoppage of 

 foreign shipments. Buy 

 nursery stock grown at 

 Andorra. 



Andorra 



Nurseries 



Wm. Warner Harper, Prop. 

 " Suggestions for Effective 

 Planting" on request 



Box 200, 

 Chestnut Hill 

 Phila., Penna. 



W. & T. SMITH CO. 



Geneva Nursery 



NURSERY STOCK 

 AT WHOLESALE 



SEND FOR CATALOG 

 AND PRICE LIST 



GENEVA, N.Y. 



FORESTRY SEEDS 



Picea Englemanni 

 Picea Pungens 

 Thuya Occidentalis 

 Pinus taeda 



I OFFER AT SPECIAL PRICES 



Pinus strobus 



Pseudo-tsuga Doug- 

 lass! 



Pinus ponderosa 

 and many other varieties, all of this season's 

 crop and of good quality. Samples upon re- 

 quest. Send for my catalogue containing full 

 list )f varieties. 



THOMA.S J. LANC 



TKKE SKKI>MAN 



Dresher Pennsylvania 



HILL'S 



Seedlings and Transplants 



Also Tree Seeds 



FOR REFORESTING 



BEST for over a half century. All leading 

 hardy sorts, grown in immense quantities. 

 Prices lowest. Quality highest. Forest 

 Planter's Guide, also price lists are free. 

 Write to-day and mention this magazine. 



THE D. HILL NURSERY CO. 



Evergreen Specialists 



Largest Growers in America 



BOX 501 DUNDEE, ILL. 



Orchids 



We are specialistB in Orchids: 

 we collect, import, grow, sell 

 and export this class of plants exclusively. 



Our illustrated and descriptive catalogue of 

 Orchids may be had on application. Also special 

 list of freshly imported unestablished Orchids. 



LAGER & HURRELL 



Orchid Growtrt and ImportefM 



SUMMIT, N. J. 



National wood grower, May, 1917. As- 

 sisting to handle the forests, by Al- 

 bert F. Potter, p. 26, 2i. 

 ! Northwestern motorist, May, 1917. Yel- 

 lowstone and Glacier, two national 

 parks in the Rocky Mts. which differ 

 widely in character, by Robert Ster- 

 ling Yard, p. 13, 21. 

 Outdoor life, June, 1917. A glimpse of 

 Rocky mountain national park, by 

 C. E. Turner, p. 631-4. I 



Plant world, April, 1917. Plant Associa- 

 tion of western Pennsylvania with 

 special reference to physiographic 

 relationship, by J. E. Cribbs, p. 97- 

 120. 

 Plant world. May, 1917. The physical 

 control of vegetation in rain-forest 

 and desert mountains, by Forrest 

 Shreve, p. 135-41. 

 Recreation, June, 1917. The hub of our 

 national park system, by Arthur 

 Chapman, p. 268-70. 

 Science, May 18, 1917. Where do pitch- 

 er-leafed ash trees grow? by George 

 H. Shull, p. 479-80. 

 Scientific American supplement, March 

 3, 1917. The mahogany tree; most 

 valuable member of tropical Ameri- 

 can forests, by C. D. Mell, p. 129, 

 136-8. 

 Scientific American supplement, March 

 31, 1917. The cohune palm; a Cen- 

 tral American tree, the nuts of which 

 produce a valuable oil, by C. D. Mell, 

 p. 196. 

 Scientific American supplement, April 

 28, 1917. Carving in wood; the old- 

 est art of the human race, p. 257, 

 264. 

 Scribner's magazine, April, 1917. The 

 national park on Mount Desert Is- 

 land, by Beatrix Ferrand, p. 484-94. 

 Torreya, Feb. 1917. Self-pruning in the 

 .American elm, by Jean Broadhurst, 

 p. 21-4. 

 I World's work, June, 1917. Russia's un- 

 developed riches, by A. J. Sack, p. 

 223-8. 



Trade journals and consular reports 



American lumberman. May 12, 1917. 

 Lumbermen to build wooden vessels 

 as a patriotic duty, p. 24; Adapting 

 a new wood to an old but patriotic 

 use, p. 24; Ship building program 

 rapidly taking shape, p. 22-2. 



American lumberman. May 19, 1917. In- 

 creasing grazing fees on national for- 

 ests equitably regulated, p. 27; En- 

 gineering corps instructed in use of 

 timber, p. ii; Building codes and roof 

 coverings, p. 43; With a forestry bat- 

 talion in England, p. 57. 



American lumberman. May 26, 1917. 

 New wooden pipe line tested out at 

 Seattle, Wash., p. 30; Forest fires in 

 north cause great damage, p. 35; 

 Lumbermen provide sawmill forces 

 for allies, p. 44; Use of wooden shoes 

 attracts attention, p. 52. 



American lumberman, June 2, 1917. 

 What is needed in government ship 

 building; specifications issued for 

 Douglas fir given in detail, p. 40-1. 



American lumberman, June 9, 1917. 

 Wood preservers face a serious prob- 

 lem, p. 29; The use of motors in for- 

 est fire fighting, p. 51. 



Barrel and box, May, 1917. Data on de- 

 preciation, p. 19; Cost of ammunition 

 boxes, p. 38. 



Canada lumberman, May IS, 1917. Lum- 

 ber slides and chain conveyors, by 

 C. R. Lee, p. 31; Present and future 

 wood products, p. 35. 



Engineering news-record. May 24, 1917. 

 i Dry rot sometimes a menace in 



dry, warm timber buildings, by J. 

 Norman Jensen, p. 409-10. 



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WI-i .*-ivV.A..# 



/l^^?:^ 



]r// 



TREE 

 SEEDS 



IF the seed is 



* notwhat itshould 

 be, the most favor- 

 a b le soil and 

 climate cannot 

 produce a strong, 

 perfect tree. 



Thorburn's Tree Seeds 

 are selected with the 

 greatest care, so that 

 as the' years go[ by the 

 Httle sapHng will grow 

 into a sturdy, big and 

 handsome tree, which 

 will be a joy to all who 

 see it, and] who pass 

 under its spreading 

 branches. 



You can rely on Thor- 

 burn's seeds; they have 

 been renowned for qual- 

 ity for over a century. 



