CURRENT LITERATURE 



635 



ft 



IS THE ENEMY ON 

 YOUR FARM ? 



This is a war of endurance. 

 Men and money are important 

 but food counts most. Soldiers 

 vho fipht must eat. So must their 

 dependents at home. The world 

 must be fed. 



Every idle acre of reclaimable 

 land on your farm aids the enemy. 

 Every acre of untilled soil de- 

 prives many needy mouths of food. 



The sinking of each food ship 

 is a disaster, but the idle acres of 

 America could grow more food 

 per year than all of the enemy's 

 submarines can destroy. 



Fight the enemy now, with 



RED CROSS FARM POWDER 



It is the most efficient reclaimer 

 of cut over, boulder strewn or 

 swamp land. It helps to solve the 

 labor problem, enables one man 

 to do the work of many and does 

 it better and quicker. 



Get our big book free 

 Learn the facts on farming 

 with Farm Powder the safe, quick 

 and efficient method. Send today 

 for your copy of 



The Ciut Laborer No. 350 F 

 E. I. du Pont de Nemours & Co. 

 WUminffton, Delawar* 



1linntt>%ililt> iiH{:;HMI<lll^mnrt-iiltA 



R. Morgan Elliott & Co. 



PATENT ATTORNEYS 



MECHANrCAL. ELECTRICAL A CHEMICAL EXPERTS 



723-731 woodward building 

 Washington. D. C. 





i 



{jj^j 



PATENTS 



Ullen the slightest itnpruveiiicnt, protected I 

 by patent, means lhoiisan<ls of dullars tu the | 

 inventor. uur liulletins hst hundreds of in- 

 ventions ifreatly needed, esjiccially in farm 

 iniplenients. aiitoniot>ile accessories, house- 

 hold specialties and toys. Bulletins and book | 

 |Of advice free. Simply mail a postcard. 

 'Uuicuttr * Allwlne, KsliUril AU'yi. 

 386 Ouray bld^. Washington, L>. C. 



Periodical Articles 



Miscellaneous periodicals 

 Aerial age, July 30, 1917, How to test lum- 

 ber for dryness, by Thomas D. Perry, 

 p. 681-2. 

 Aviation, July 15, 1917. Kapok and some 

 of its uses, by Charles Garrison, p. 565. 

 Aviation, August 1, 1917. Testing moisture 

 content in lumber, by Thomas D. Perry, 

 p. 37-8, 

 -Aviation, August IS, 1917. The controlled 

 saturated atmosphere expansion method 

 of lumber drying, by Thomas D. Perry, 

 p. 103-4; The controlled unsaturated 

 atmosphere expansion method of lum- 

 ber drying, by A. J. Henry, p. 105. 

 -Vviation, Sept. 1, 1917. The economical 

 arrangement of dry kilns, by Thomas 

 D. Perry, p. 169-71. 

 Botanical gazette, Aug., 1917. A survey 

 of the Hawaiian land flora, by Vaughan 

 MacCaughey, p. 89-114; Reproduction 

 in the coniferous forests of northern 

 New England, by Harrington Moore, 

 p. 149-58. 

 Breeders' gazette, Aug. 16, 1917. Uncle 

 Sam, range cowman, by Will C. Barnes, 

 p. 203-4. 

 Country boy, Aug., 1917. How to stop 



fires, by A. F. Potter, p. 6. 

 Country gentleman, July 21, 1917. Trees 



of the tropics, p. 21. 

 Country gentleman, Sept. 1, 1917. The 

 farmers' $200,000,000 woodlot; supply- 

 ing lumber for army cities, airships, 

 gunstocks and dyestuffs, by H. E. C. 

 Bryant, p. 9, 32. 

 Country life, July 7, 1917. Timber for 



aeroplanes, by A. D. Webster, p. 21. 

 International socialist review, June, 1917. 

 Spring drive of the lumber jacks, by 

 C. E. Payne, p. 729-30. 

 Journal of heredity, Sept., 1917. Pitcher- 

 leaved ash trees, by George H. ShuU, 

 p. 431. 

 Journal of the Franklin institute, Sept., 

 1917. The chemistry of cellulose and 

 its important industrial applications, by 

 H S. Mork, p. 353-70. 

 National geographic magazine, April, 1917. 

 Friends of our forests, by Henry 

 W. Henshaw, p. 297-321. 

 Philippine journal of science. Sec. C, Jan., 

 1917. The origin and dispersal of 

 Cocos nucifera, by O. Beccari, p. 27-43. 

 Popular science monthly, Aug., 1917. 

 Teaching the proper care of forests by 

 object lesson models, p. 199. 

 Science, Sept. 7, 1917. Plant ecology and 

 its relation to agriculture, by Warren 

 G. Waterman, p. 223-8; Innoculations 

 on Ribes with Cronartium ribicola, by 

 Perley Spauldiiig, and G. Flippo Grav- 

 att, p. 243-4. 

 Scientific American, Sept. 1, 1917. How 

 forest fires are discovered and reported, 

 p. 166, 

 Scientific American supplement, July 21, 

 1917. Protecting our timber resources; 

 using the heliograph to fight forest 

 fires, by Arthur L. Dahl, p. 33, 36. 



Today 



Make it a 

 Point to 



eMr 



E'VERYONE who 



^^ plants the seed for a 

 tree of the future is help- 

 ing to repair the ravages 

 caused by war. To those 

 who look ahead it is ap- 

 parent that the people 

 of this country must 

 learn to plant a tree each 

 time one is cut down. 



TREE 

 SEEDS 



are of particular value, 

 are carefully chosen 

 and are preferred by 

 those wha, instead 

 of taking chances, de- 

 sire to make certain 

 that the seeds they plant 

 will grow into strong 

 trees, of full size, luxuri- 

 ant as to shade and fruit. 



Buying Thorburn's means 

 buying the best seeds 



J. M. Thorburn & Co. 



ESTABLISHED 1802 

 53-5 Barclay Street 



through to 



54 Park Place 

 NEW YORK 



