242 MISC. PUBLICATION 3 6 4, U. S. DEPT. OF AGRICULTURE 



Kunz, G. F. (47S2) 



agatized and jasperized wood O'F Arizona. Pop. Sci. Monthly 28: 362-367. 



1886. 



Merrill,, G. P., comp. (4783) 



the fossil forests of Arizona. 23 pp., illus. Washington, D. C. 1911. 



(4784) 



the fossil forest of Arizona. Amer. Mus. Jour. 13: 311-316, illus. 1913. 



Mitchell, G. E. (4785) 



the standing stone forests of Wyoming. Sci. Amer. 134 (2) : 98-99, illus. 

 1926. 



Morrell, F. W. (4786) 



stone forests of the gallatin. Nature Mag. 13: 105-106, illus. 1929. 



Muir, John. (4787) 



ON THE POST-GLACIAL HISTORY OF SEQUOIA GIGANTEA. Amer. ASSOC. Adv. Sci. 



Proc. 25: 242-253. 1876, 



Pearson. G. E. (4788) 



a forest underground. Canacl. Forest and Outdoors 22 (2) : 79-81, illus. 

 1926. 



Rubel, Eduard. (4789) 



the present state of geoeotanical research in Switzerland. Intematl. 

 Cong. Plant Sci. Proc. 1 : 603-621. 1926. 



Troxell, E. L. (4790) 



fossil logs and nuts of hickory. Sci. Monthly 21 (6) : 570^572, illus. 

 1925. 



Vaughan, T. W. . (4791) 



the geologic work of mangroves in sothern Florida. Smithsu. Misc. Collect. 

 52 : 461-464, illus. 1910. 



Ward, L. F. (4792) 



fossil trees. Bull. Torrey Bot. Club 21 (7) : 291-294. 1894. 



(4793) 



origin of the plane trees, Amer. Nat. 24 : 797-810, illus. 1890 ! . 



Weed, W. H. (4794) 



fossil forests of tfie Yellowstone. School Mines Quart. 13: 230-236, 

 illus. 1892. 



Whittle, C. A. (4795) 



the sycamore's ancient family tree. Amer. Forests and Forest Life 36 : 

 291-292, illus. 1930'. 



Wieland, G. R. (4796) 



the world's two greatest petrified forests. "Science 69 : 60-63. 1929. 



SILVICULTURE 



Baker, H. P., and McCarthy, E. F. (4797) 



fundamental silvicultural measures necessary to insure forest lands 

 remaining reasonably productive after logging. Jour. Forestry 18 :- 13- 

 22, 1920. 



Barcena, Mariano. (4798) 



selvicultura ; breves consideraciones sobre explotacion y formacion 

 de los bosques. 56 pp. Mexico. 1892. 



Bedard, Avila. (4799) 



practice of sylviculture in eastern canada (Quebec). Canad. Forest and 

 Outdoors 26 (8) : 472-473, 475, illus. 1930. 



Besley, F. W. (4800) 



the fuel wood situation and how it affects the practice of silviculture. 

 Jour. Forestry 21 : 231-235. 1923. 



Bonansea, S. J. (4801) 



ENORMES RIOUEZAS NATURALES DE MEXICO APEOVECHAPLES POR LA SILVICULTURE. 



Mem. y Rev. Soc Cient. "Antonio Alzate" 9 (7-8) : 395-404. 1921. 



