S'.lf, 



INDEX. 



Wright, F. E., Transmission of Light 

 through Transparent Inactive Crystal 

 Piatt s. with Special Reference to 

 Observations in Convergent Polarized 

 Light, 109 



Wiilker, G., Japanese Cephalopoda, 015 



Wanderer, EL, Development of Alpine 

 Salamander, 187 



"Wiist, P., Influence of Segregation on the 

 ' of Mild Steel, 270 



Strength 



X 



X-iays. Action on Developing Chick, 455 



— Castration, 347 



— Sterilization. 347 



Xylem Elements of the Pteridophyta, 644 



Yasui. K., Life-history of Salvinia natans, 

 645 



Yatsu, N., Extra-ovate Experiments on Sea- 

 urchin Ova. 363 



— Polarity of Primary Oocyte of Asterias 



forbesii, 472 

 Yawning in Fishes, 194 

 Yeast, Presence on Tea, 392 

 Yeast-cell, Demonstrating the Structure,262 

 Yeast-cells and Fermentation, 509 



— Copulation, 392 



Yeast-juice, Alcoholic Ferment, 672 

 Yeasts and Insects, Symbiosis, 616 

 Young, W. J., Alcoholic Ferment of Yeast- 

 juice, 672 



Z 



Zach, F.. Occurrence of Phagocytosis in 

 the Root-nodules of Cycads, 60 



— Rusts of Cereals. 80 



Zacher, F., Position and Classification of 



I'rotodermaptera, 620 

 Zaleski, W., Function of Nucleoproteid, 



637 

 Zalesski, M., Lepidostrobux bertrandi, 



62 

 Zander, E., and another, Studies on Bees, 



197 

 Zaphrcnfi8 delanonei, Evolution, ."> 1 

 Zarnik, B., Kidney of Gecko, 190 



— Life-cycle of Dicrorop.lium lanceatum, 



361 

 Zawarzin. A., Histological Study of the 



Innervation of the Heart of Larval 



Dragon-fly, 750 

 Zeiss Apochromat, New, Some New 



Diatomic Structure discovered with, 



700 

 Zeiss, C, Directions for using Glass 



Micrometers, 538 

 Zeiss Nernst Lanip, New, 810 

 Zellner, J., Chemistry of the Higher 



Fungi, 396 

 Zieglwallner, F., Fixation aud Staining of 



Glycogen, 821 

 Zinc Amalgams, 417 



— and Aluminium Alloys, 711 



— Mae^iesiuin and Cadmium, Ternary 



Alloys, 124 



— Polymorphism, 123 



Zimmerman, H., Germination of Ustilago 



Spores, 511 

 Zimmerman, K. W., Epithelial Cells of 



Mammalian Kidney, 609 

 Zodda, J., Drepanocladus, 655 

 Zoology, Outlines, 39 

 Zulueta, A. de, Copepods Parasitic on 



Alcyonarians, 202 

 Zygopttridese, 61 



LONDON: PRIMED BY WILLIAM CLOWES AND SONS, LIMITED, 

 f.KEAT WINDMILL STREET, W., AND DUKE STREET, STAMFORD STREET, S.E. 



