570 







Europe is hungry. Disaster lurks 

 in the w;ike of submarines. The 

 loss of each food sliip is a tragedy. 

 But the idle acres of America 

 could grow more food per year 

 than all of the enemy's ships can 

 destroy. 

 Every I<Ue Acre Helps the Enemy. 



Hinder rations and you hinder 

 victory. Submarines will continue 

 to sink food ships. Other ships 

 and more food must take the 

 place of those destroyed. 

 Clear Plow Plwit 



Remove the stumps and boul- 

 dersdrain the swampy places. 

 Cultivate every available acre of 

 land. Don't let labor shortage 

 hinder you. 



is 



* 



RED CROSS FARM POWDER 



will do the work of many men 

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Find out how Du Pont Red 

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Send now for your copy of 

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I 



SlMrMMIr OljPnNt' j fHUSl>iiUH ' 



R. Morgan Elliott & Co. 



PATENT ATTORNEYS 



MCCHANICAL. ELECTRICAL ft CHKhflCAL EXPERTS 



723-731 woodward building 

 Washington. D. C. 



PATEINTB 



unen Ihe slitfhtciit iinpiuveiiicnt. ptutected 

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AMERICAN FORESTRY 



CURRENT LITERATURE 



(.Books and periodicals indexed in the 

 library of the United States Forest 

 Service.) 



Forestry as a Whole 

 Froceedings and reports of associations, 



forest officers, etc. 

 Association centrale pour ramenageraent 

 des montagnes. Statuts et reglement 

 interieur. 16 p. Bordeaux, F. Pech & 

 cie, 1915. 

 Pcrona. L'oeuvre de 1' Association centrale 

 pour I'amenagement des montagnes. 

 32 p. il. Bordeaux, Impr. Gounouil- 

 hou, 1914. 

 Royal Scottish arboricultural society. 

 Transactions, voL 31, pt. 2. 116 p. il., 

 pi. Edinburgh, 1917. 



Forest Education 

 Forest sc'wols 



Idaho, University of School of forestry. 

 Announcements concerning the courses 

 to be offered in forestry, 1917-1918. 

 IS p. pi. Moscow, Id., 1917. 

 North Dakota state school of agriculture 

 and forestry. Eleventh annual catalog 

 number, 1916-17, with announcements 

 for 1917-18. 72 p. Bottineau, N. D., 

 1917. 

 Philippines, University of the Forest 

 school. Catalogue, 1916-17; announce- 

 ments, 1917-18. 12 p. Manila, 1917. 

 Forest Description 

 Descombes, Paul. Forets et paturages 

 d'ltalie. 20 p. il. Bordeaux, Feret et 

 fils, 1913. 



Forest Botany 

 Maiden, J. H. A critical revision of the 

 genus Eucalyptus, pts. 29-30. pi. Syd- 

 ney, N. S. W., Gov't, printer, 1917. 

 Forest Influences 

 Descombes, Paul. Le reboisement et les 

 condensations occultes. 5 p. Paris, As- 

 sociation francaise pour I'avancement 

 des sciences, 1914. 

 Descombes, Paul. Les reboisement ration- 

 nel et la meteorologie. 8 p. Tours, 

 Impr. E. Arrault et cie, 1914. 

 Forest Mensuration 

 Krinbill, Howard R. Timber estimating 

 methods used in eastern North Caro- 

 lina. 9 p. Newbern, N. C, 1917. 

 Silviculture 

 Reforestation 



Descombes, Paul. L'amenagement des mon- 

 tagnes et le reboisement. 16 p. il. 

 Bordeaux, Feret et fils, 1912. 

 Descombes, Paul. La defense nationale et 

 I'armature vegetale de la France. 23 p. 

 Paris, Louis De Soye, 1915. 

 Descombes, Paul. La penurie des bois 

 d'oeuvre et la nouvelle loi tendant a 

 favoriser le reboisement. 8 p. il. 

 Bordeaux, Feret et fils, 1913. 

 Descombes, Paul. Le repeuplement des 

 montagnes et la defense nationale. 

 19 p. Paris, Bureaux de la Revue 

 politique et parlementaire, 1916. 



: jiLj>ia/-ygr^LnMrTisiiiiiiUiMjiiz:i;gi^ 



WITH two 

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of lumber per year 

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Tree Seeds 



are chosen with 

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The fruits of the apple, 

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 Thorburn's seeds are 

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Buy Thorburn's and you are 

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J.M.Thorburn&Co. 



ESTABLISHED 1802 

 53 S. Barclay Street 



Through to 

 54 'Park Place 

 NEW YORK 





