1148 



INDEX 



Wright, 519 



Wrisberg, 208 



Wrzesniowski, 208, 210, 217, 413 



Wurmser, 125, 396 



Xanthellae, relationship to host, 1010 

 X-ray diffraction and ultra-centrifugation, 

 97 f. 



Yagiu, 919, 920, 922, 923, 1022 



Yakimoff, 870, 1032 



Yale University, race of Paramecium 

 aurelia, 615, 653, 654, 659, 660, 661 



Yamasaki, 154, 156, 157, 159, 968, 969, 

 970 



Yarwood, 576 



Yeast, use in cultures, 449, 543 



Yellow respiratory pigments, or enzyme, 

 373 



Yocom, H. B., 23, 343, 535, 538; fibril- 

 lar system, 206, 207, 258 



Yonge, 962 



Yorke, Adams, and Murgatroyd, 388, 389 



Young, D. B., 18, 777, 778, 789 



Young, Dixie, 647, 653, 797 



Young, R. A., 419, 420 



Young, R. T., 660 



Yuan-Po, 1045, 1047, 1048, 1051, 1052, 

 1058 



Zacharias, 1074 



Zdrodowski, 877 



Zederbauer, 588 



Zeliff, 1044 



Zenker, 413 



Zerling, 906 



Zhalkovskii, 542 



Zhinkin, 153, 154, 157, 159, 388 



Zick, 931, 932 



Ziegler and Halvorson, 520 



Zinger, 123, 151, 152, 165 



Zoological Nomenclature, International 



Rules of, 954 

 Zoomastigophora parasites in Protozoa, 



1070-74 

 Zoothamn'ium, regeneration, 805 ff. 

 Zuelzer, M., 426, 595 

 Zumstein, 463 

 Zurn, 983 



Zweibaum, 153, 362, 365, 689 

 Zwischenstreifen, 201, 202 

 Zygote, start of metazoan life cycle with, 



566 

 Zygotic meiosis, 611-14 



