FOREST BOTANY 181 



Rothrock, J. T. (3573) 



pin oak, Spanish oak. Forest Leaves 6: 121, illus. 1898. 



(3574) 



PBUNus serotina; wild cherry, wild black cherry, rum cherry. For- 

 est Leaves 14 : 8, illus. 1913. 



(3575) 



red oak. (quercus rubra l.) Forest Leaves 7: 88. 1899. 



— (3576) 

 rock oak, rock chestnut oak. (quercus PRiNUS l.) Forest Leaves 6: 



104, illus. 1898. 



— (3577) 

 silver maple,, white maple, soft maple. Forest Leaves 5: 168-169. 1896. 



— (3578) 

 slippery elm (ulmus fulva michx.) Forest Leaves 8: 136. 1902. 



— (3579) 

 sweetgum. Forest Leaves 11 : 120, illus. 1908. 



— (3580) 



yellow birch, gray birch. Forest Leaves 6: 152-153, illus. 1898. 

 Sargent, C. S. (3581) 



IMPORTANCE! OF CATALPA TREE FOR ECONOMIC 1 PLANTING. JOUI'. Forestry 2 I 



273-275. 1878-79. 



Schrenk, Hermann von. (3582) 



tupelo, Tupelo gum, or bay poplar. South. Indus, and Lumber Rev. 19 (5) : 

 46-47, illus. 1911. 



Scott, C. A. (3583) 



the hardy catalpa. Kans. State Hort. Soc Rept. 37 : 140^150. 1924. 



Sherwood, G. H. (3584) 



the big tree and its story. Amer. Mus. Nat. Hist. Guide Leaflet 42, 23 pp., 

 illus. 1915. 



Sterrett, W. D. (3585) 



the ashes : their characteristics and management. U. S. Dept. Agr. Bull. 

 299, 88 pp., illus. 1915. 



■ and Holmes, J. S. (3586) 



the ash in north Carolina. N. C. Geol. and Econ. Survey Press Bull. 156, 

 8 pp. 1917. 



Taylor, A. E. (3587) 



the tulip poplar ... a forest tree of important commercial value for 

 ohio. Ohio Agr. Expt. Sta. Monthly Bull. 2 (2) : 51-58, illus. 1917. 



Teng, Shu-chun. (3588) 



the two gymnocladt. Cornell Forester 5 : 11. 1925. 



Trenk, F. B. (3589) 



SWEET GUM IN MARYLAND : A HANDBOOK FOR GROWERS AND USERS. 75 pp., illuS. 



Baltimore. 1929. 



Weigle, W. G., and Frothingham, E. H. (3590) 



the aspens : their growth and management. U. S. Dept. Agr., Forest 

 Serv. Bull. 93, 35 pp. 1911. 



Williamson, A. W. (3591) 



Cottonwood in the Mississippi valley. U. S. Dept. Agr. Bull. 24 62, pp., 

 illus. 1913. 



Zon, Raphael. (3592) 



chestnut in southern Maryland. U. S. Dept. Agr., Bur. Forestry Bull. 53, 

 31, pp., illus. 1904. 



Redwoods 

 Bradley, C. B. (3593) 



a new study of some problems relating to the giant trees. 12 pp. San 

 Francisco. 1886. 



