FOREST BOTANY 123 



Curtis, O. F. (2432) 



THE UPWARD TRANSLOCATION OF FOODS IN WOODY PLANTS. I. TISSUES CON- 

 CERNED in translocation. Amer. Jour. Bot. 7: 101-124, 286. 1920. 



Davies, P. A. (2433) 



THE RELATION OF TOTAL NITROGEN TO REGENERATION IN THE WILLOW. Science 



72: 276-277, illus. 1930. 



Deuber, C. G. (2434) 



chlorophyll in tree leaves. Jour. Forestry 27 : 76-77. 1929. 



(2435) 



green trees. Tree Talk 1930 : 74-84, illus. 1930. 



Dixon, H. H. (2436) 



transpiration and the ascent of sap. Smithsn. Inst. Ann. Kept. 1910: 

 407-425, illus. Washington, D. C. 1911. 



Dole, E. J. (2437) 



studies on the effects of air temperature and relative humidity on the 

 transpiration of pinus strobus. Vt. Agr. Expt. Sta. Bull. 238, 29 pp., 

 illus. 1924. 



Dufrenoy, Jean. (2438) 



pine needles, their significance and history. Bot. Gaz. 66 : 439-454. 

 1918. 



Ehlers, J. H. (2439) 



the temperature of leaves of pinus in winter. Amer. Jour. Bot. 2 : 32-70, 

 illus. 1915. 



Elliott, S. B. (2440) 



the problem of food movement in trees. Forestry Quart. 12 : 559-561. 

 1914. 



Emerson, R. A. (2441) 



THE RELATION OF EARLY MATURITY TO HARDINESS IN TREES. Nebl". Agl*. Expt. 



Sta. Ann. Kept. 19 : 101-110, illus. 1905. 



Faull, J. H. (2442) 



living cells in heart-wood of trees. Science 67: 296-297. 1928. 



Ferguson, J. A. (2443) 



gas contained in cavities of trees. Amer. Forestry 19 : 417. 1913. 



(2444) 



influence of locust on the growth of CATALPA. Jour. Forestry 20: 318- 

 319. 1922. 



Ferguson, M. C. (2445) 



LIFE HISTORY OF PINUS WITH SPECIAL REFERENCE TO SPOROGENESIS, THE DEVELOP- 

 MENT OF THE GAMETOPHYTES AND FERTILIZATION. Wash. Acad. Sci. PrOC. 



6: 1-202, illus. 1904. 

 FoerstE, A. F. (2446) 



ON THE CASTING-OFF OF THE TIPS OF BRANCHES OF CERTAIN TREES. Bull. Torrey 



Bot. Club 19: 267-269; 20: 157-168, illus. 1892-93, 

 Gail, F. W. (2447) 



OSMOTIC PRESSURE OF CELL SAP AND ITS POSSIBLE RELATION TO WINTER KILLING 



and leaf fall. Bot. Gaz. 81 : 434-445, illus. 1926. 

 and Cone, W. H. (2448) 



OSMOTIC PRESSURE AND pH MEASUREMENTS ON CELL SAP OF PINUS PONDEROSA. 



Bot. Gaz. 88: 437-441, illus. 1929. 



Garner, W. W., and Allard, H. A. (2449) 



FURTHER STUDIES ON PHOTOPERIODISM — THE RESPONSE OF THE PLANT TO RELA- 

 TIVE length of day and night. Jour. Agr. Research 23: 871-919, illus. 

 1923, 



Hartley, Carl. (2450) 



stem lesions caused by excessive heat. Jour. Agr. Research 14 : 595-604. 

 1918. 



