FOREST BOTANY 157 



Haasis, F. W. (3097) 



RELATIONS BETWEEN SOIL TYPE AND BOOT FORM OF WESTERN YELLOW PINE SEED- 

 LINGS. Ecology 2 : 292-303. 1921. 



(3098) 



RESULTS OF AN EXPERIMENT ON THE EFFECT OF DRYING OF THE ROOTS OF SEED- 

 LINGS of red and white pine. Forestry Quart. 12 : 311-318. 1914. 



Hahn, G. G., Hartley, C, and Rhoads, A. S. (3099) 



HYPERTROPHIES LENTTCELS ON THE BOOTS OF CONIFERS AND THEIR RELATION TO 



moisture and aeration. Jour. Agr. Research 20 : 253-266, illus. 1920. 



Harlow, S. H. (3100) 



roots of the hemlock. Jour. N. Y. Bot. Gard. 1 (7) : 100-101, illus. 1900. 



Hartley, Carl. (3101) 



relation between soil acidity and boot diseases of forest trees. tj. s. 

 Dept. Agr., Forest Worker 6 (5) : 15. 1930. 



Hodgson, A. H. (3102) 



the whimsical root habits of western hemlock. Amer. Forests and F'or- 

 est Life 33 : 541-543, illus. 1927. 



Laing, H. M. (3103) 



the mystery of tree roots. Canad. Forest and Outdoors 26 : 218-220, illus. 

 1930. 



Lamb, F. H. (3104) 



boot suckers on douglas fir. Bot. Gaz. 28 : 69-70. 1899. 



MoDougall, W. B. (3105) 



the growth of forest tree boots. Amer. Jour. Bot. 3 '. 384-392. 1916. 



(3106) 



a preliminary key to some forest tree roots. 111. State Acad. Sci. Trans. 



14: 87-91. 1921. 



MoMurphy, James, and Peirce, G. J. (3107) 



drought and the root system of eucalyptus. Science (n. s.) 51: 118-120. 

 1920. 



Moobe, Babrington. (3108) 



humus and root systems in certain northeastern forests in relation to 

 reproduction and competition. Jour. Forestry 20: 233-254. 1922. 



Newins, H. S. (3109) 



the natural boot grafting of conifers. Soc. Amer. Foresters Proc. 11: 

 394-404, illus. 1916. 



Pembebton, C. C. (3110) 



natural boot graft and the overgrowth of stumps of conifers. Nat. Hist. 

 23 (2) : 125-134, illus. 1923. 



Pulling, H. E. (3111) 



BOOT HABIT AND PLANT DISTRIBUTION IN THE FAB NORTH. Plant World 21 : 



223^-233. 1918. 



Sempees, J. F. (3112) 



peculiar root growths. Amer. Forests and Forest Life 31 : 250, illus. 

 1925. 



Shaleb, N. S. (3113) 



root processes of gum in the dismal swamp. U. S. Geol. Survey Ann. Rept. 

 10 (1) : 323-325, illus. 1890. 



Tolsky, A. P. (3114) 



effect of soil on the boot development of pine. (Review.) Forestry 

 Quart. 3: 53-54. 1905. 



Toumey, J. W. (3115) 



early root development of tree seedlings an important factor, in their 

 local distribution. Science 17 : 455-456. 1903. 



(3116) 



INITIAL ROOT HABIT IN AMERICAN TREES AND ITS BEARING ON REGENERATION. 



Internatl. Cong. Plant Sci. Proc. 1 : 713-728, illus. 1926, 



