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United States Dept. of agriculture Forest service. Report on the big trees of 

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Issued also as 56th Cong., 1st sess., Senate doc. 393; also under following title. 



United States Dept. of agriculture Forest service. A short account of the big 

 trees of California. 30p. 15 pi., 2 maps. 8.,,* Washington, 1900. (U. S. Dept. 

 of agriculture Division of forestry. Bulletin 28) Agr 9406 



United States Dept. of the interior General land office. [Situation of the red- 

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Prepared by Andrew Cauldwell. 



SPRUCE. 



Frothingham, Earl Hazeltine. Douglas fir: a study of the Pacific coast and 

 Rocky Mountain forms. 38 p. illus. 8. Washington, 1909. (I). S. Dept. of 

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Frothingham, Earl Hazeltine. Die Douglasfichte, ihre kiistenform und gebirgs- 

 form. [28] p. pi. 4. [Bonn-Poppelsdorf] 1909. 



Sonder-abdruck aus Mitteilungcn der Deutschen dendrologischen gesellschaft, no. 18, 1909. 



Hodson, Elmer Reed, and Foster, J. H. Engelmann spruce in the Rocky 

 Mountains, with special reference to growth, volume, and reproduction. 23 p. 8. 

 Washington, 1910. (U. S. Dept. of agriculture Forest service. Circular 170) 



Agr 101479 



Peck, Charles Horton. The black spruce. 21 p. 8. [Albany, 1876] 



From Transactions of the Albany institute, v. 8, p. 283-301. 



Rikli, Martin. Die arve in der Schweiz. Ein beitrag zur waldgeschichte und 

 waldwirtschaft der schweizer Alpen. 455 p. illus. and atlas of 22 p., 28 pi. (incl. 19 

 maps) 2 fold, maps in pocket. 4. Basel, Genf und Lyon, 1909. (Neue denk- 

 schrjften der Schweizerischen naturforschenden gesellschaft. Nouveaux memoires 

 de la Societe helvetique des sciences naturelles. bd. 49, teil 1-2) Agr 9 2275 



"Literaturverzeichnis": p. xxiii-xxxviii. 



Schiffel, Adalbert. Begriindung der lehre iiber die erziehung der fichte. 21 p. 

 illus. 8. Wien, 1910. Agrio 1541 



Mitteilung aus dem Forstlichen versuchswesen Osterreichs. 

 Sonderabruck aus dem "Centralblatt fur das gesamte forstwesen" 1910. 



Speidel, Emil. Waldbauliche forschungen in wiirttembergischen fichtenbestan- 

 den. 79 p. 8. Tubingen, 1889. 



United States Dept. of agriculture Forest service. Big cone spruce. Pseudo- 

 tsuga macrocarpa (Torr.) 3 p. 8. [Washington] 1907. (Its Silvical leaflet 10) 



Agr 7 2272 



United States Dept. oj agriculture Forest service. Black spruce. Picea ma- 

 riana (Mill) B. S. P. 3 p. 8. [Washington] 1908. (Its Silvical leaflet 28) 



Agr 9-815 



United States Dept. of agriculture Forest service. Blue spruce. Picea par- 

 ryana (Andre) Parry. 2 p. 8. [Washington] 1908. (Its Silvical leaflet 29) 



Agr 9 816 



United States Dept. of agriculture Forest service. Engelmann spruce. Picea 

 engelmanni Engelm. 4 p. 8. [Washington] 1907. (Its Silvical leaflet 3) 



Agr 72265 



United Stat'es Dept. of agriculture Forest service. Sitka spruce. Picea sit- 



chensis (Bong.) Trautv. and Mayer. 4 p. 8. [Washington] 1907. (Its Silvical 



leaflet 6) A;;r 72268 



15828 Bull. 7612 9 



