134 MISC- PUBLICATION 2 81, U. S. DEPT. OF AGRICULTURE 

 Wilson, J. D. (2444) 



A QUICK-BEADING ATMOMETERJ ITS USE IX DETECTIXG SMALL VARIATIOXS IX 



rate of air movemext. Ecology 9: 412-420, illus. 1928. 



Wright, S. . (2445) 



correlatiox axd causatiox. Jour. Agr. Research 20: 557-585, illus. 1921. 



Youxg, A. W., and Walker, R. H. (2446) 



experimexts with the wixogradsky spoxtaxeous culture test on 

 iowa soils. Iowa Acad. Sci. Proc. 38: 313-320. 1931-32. 



See also Church (1591), Clements (1487), Cottle (2201), Hilgard (174-7), 

 Ingram (2219), Kurz (1925), Livingston (1650, 1652), McLaughlin (1851), 

 Pulling and others (1860), Rohwer (1674), Sampson (1678), Shull (1866), 

 Taylor (7671) , Truog (1962) , Wherry (1964, 1965) , and Willard, (2601) . Also 

 Pechanec and others (27 40a) and Stewart and others (2746). 



PHYSIOLOGY AND MORPHOLOGY 



Publications treating of the functions, life processes, activities, and requirements 

 of range plants; the structural forms, organs, anatomy, relationships, and develop- 

 ment of range plants including cytology and histology; and the technical phys- 

 iological and morphological differences and changes in range plants effected by 

 differences and changes in habitat factors. 



Albert, W. B. (2447) 



studies ox growth of alfalfa axd some perexxial grasses. Jour. 

 Amer. Soc. Agron. 19: 624-660. 1927. 



Axdersex, A. M. (2450) 



THE EFFECT OF CARBOX DIOXIDE AXD SOME OTHER GASES OX THE GERMIXATIOX 



of seeds of poa compressa. Amer. Jour. Bot. 20: 678-679. 1933. 

 Arxy, A. C. (2451) 



VARIATIONS IX THE ORGAXIC RESERVES IX UXDERGROUXD PARTS OF FIVE 

 PEREXXIAL WEEDS FROM LATE APRIL TO XOVEMBER. Minn. Agr. Expt. Sta. 



Tech. Bull. 84, 28 pp., illus. 1932. 

 Bakke, A. L. (2452) 



STUDIES OX THE TRAXSPIRIXG POWER OF PLAXTS AS IXDICATED BY THE METHOD 

 OF STAXDARDIZED HYGROMETRIC PAPER. Jour. EcologV 2: 145-173, illus. 



1914. 

 (2453) 



THE IXDEX OF FOLIAR TRAXSPIRIXG POWER AS AN IXDICATOR OF PERMAXEXT 



wiltixg. Bot. Gaz. 60: 314-319. 1915. 



(2454) 



determixatiox of wiltixg. Bot. Gaz. 66: 81-116, illus. 1918. 



and Livixgstox, B. E. (2455) 



FURTHER STUDIES OX FOLIAR TRAXSPIRIXG POWER OF PLAXTS. Phvsiol. 



Researches 2: 51-71. 1916. 

 Beaumont, A. B., Eisenmenger, W. S., and Moore, W. J., Jr. (2456) 



ASSIMILATION OF FIXED NITROGEN BY GRASSES AND CLOVERS. Jour. Agr. 



Research 47: 495-503, illus. 1933. 

 Biswell, H. H., and Weaver, J. E. (2457) 



EFFECT OF FREQUENT CLIPPING ON THE DEVELOPMEXT OF ROOTS AXD TOPS OF 



grasses ix prairie sod. Ecology 14: 368-390, illus. 1933. 

 Blake, A. K. (2458) 



VIABILITY AXD GERMIXATIOX OF SEEDS AXD EARLY LIFE HISTORY OF PRAIRIE 



plaxts. Ecol. Monographs 5: 405-460, illus. 1935. 

 Blaydes, G. W. (2459) 



A SURVEY OF RATES OF WATER LOSS FROM LEAVES. Ohio Jour. Sci. 28: 99- 



118, illus. 1928. 



Breazeale, J. F. (2460) 



the absorptiox of carbox by the roots of plants. Jour. Agr. Research 

 26: 303-311. 1923. 



