REFERENCES I43 



2" 2 STRAIN, H. H. (1951). Manual of phycology, 243-62, Chronica 

 Botanica Co., Waltham, Mass. (18, 20, 21, 103) 



2'3 SWEENY, B. M. (1951). Anier. J. Bot., 38, 669-77 (87) 



-^* SYRETT, p. J. (1951). Ann. Bot., Lond., N.S. 15, 473-92 (10, 63, 

 66, 67) 



2'5 (1953). Ann. Bot., Lond., N.S. 17, 1-19 (75, 76, 112) 



2'« (1953). Ann. Bot., Lond., N.S. 17, 21-36 (77-80) 



2'^ unpublished material (80, 81) 



2'8 SYRETT, p. J., and FOWDEN, L. (1952). Physiol. Plant., 5, 558-66 

 (78, 79) 



2'3 TAKAHASI, E., SIRAHAMA, K., and TOGASAWA, N. (1939). J. chem. 



Soc, Japan, 60, 56-60 (98, 99, 119) 



280 TANADA, T. (1951). Amer. J. Bot., 38, 276-83 (19, 24, 25, 28) 



281 TAYLOR, F. J. (1950). J. exp. Bot., I, 3OI-2I (63, 64, 67) 



282 THURGUR, H, M., unpublished results (9) 



283 TOLMACH, L. J. (1951). Arck. Btochem. Biophys., 33, 120-42 



28* TSENG, c. K., and SWEENY, B. M. (1946). Amer. J. Bot., 33, 



706-15 (36, 112) 

 285 viRTANEN, A. I. (1948). Annu. Rev. Microbiol., 2, 485-506 (68, 



70, 74) 

 28^ (1950), Acta agric. Scand., i, 1-19 (74) 



287 VIRTANEN, A. I., and MiETTiNEN, J. K. (1949). Acta chem. scand., 



3, 1437-9 (121) 



288 viSHNiAC, w., and ochoa, s. (1951). Nature, Lond., 167, 768-9 



(40) 



289 wANN, F. B. (1921). Amer. y. Bot., 8, 1-29 (69) 



29° WARBURG, o. (1919). Biochem. Z., 100, 230-70 (4, 34) 



291 (1949). Heavy metal prosthetic groups and enzyme action, 



translated by A. Lawson, Clarendon Press, Oxford (39) 



292 WARBURG, o., and NEGELEiN, E, (1920). Biochcm. Z., no, 66-115 



(71, 73> 74) 



293 WASSINK, E. c, and kersten, J. A. H. (1946). Enzymologia, 12, 



3-32 (23, 24) 

 29* watanabe, a. (1932), '^cfa Phytochim., Tokyo, 6, 315-35 (6, 



10) 



29a (1937). Acta Phytochim., Tokyo, 9, 235-54 (6, 7, 9, 50) 



296 (1937). Acta Phytochim., Tokyo, 9, 255-64 (6, 11) 



297 (1951). Arch. Biochem. Biophys., 34^ 50-5 (69, 71) 



298 WEBSTER, G. c. (1950). Amer. y. Bot., 37, 682 (9) 



299 WIELDING, s. (1941). Bot. Notiser, 1941, 375-92 (86) 



3"° WILLIAMS, A. E., and BURRis, R. H. (1952). Amer. y. Bot., 39, 



340-2 (69, 71, lOl) 

 ^"^ wiLLSTATTER, R., and STOLL, A. (1913). Untevsuchungen iiher das 



Chlorophyll, Springer, Berlin (2) 

 3oio-^jLsox, p. w. (1952). Advances in EnzymoL, 13, 345-75 (68, 



70, 78) 

 3"2 wiNOKUR, M. (1948). Amer. y. Bot., 35, 118-29 (107) 

 303 ■ (1949). Amer. y. Bot., 36, 287-91 (120) 



