INDEX. 



851 



Yatsu, N., Cell-Divisions in Cerebratulus, 



720 

 Yaws, Relation to Spiroclaeta pertenuis, 



189 

 Yeast as a Fermentative Agent, 625 



— Influence of Light and Colours, 604 

 Yeasts and Bacteria, Action of Absolute 



Alcohol on, 362 



— Origin, 352 



Yendo, K., Fucaceje of Japan, 345 

 Yerkes, E. M., Dancing Monse, 705 

 Young, R. T., Histogenesis of Cysticercus 

 pisiformis, 593 



— Studying the Histogenesis of Cysticercus 



pisiformis, 514 

 Yung, E., Variation in Length of Frog's 

 Intestine, 569 



Z. 



Zahlbruckner, A , Lichens from the Island 

 of Samoa, 633 



— Text-Book of Lichens, 220 

 Zangger, H., Functions of Membranes, 



706 

 Zarnik, B., New Order of Protozoa, 722 



Zeiss, C, Ultramicroscopy and Dark- 

 ground Illumination, 378 



Zelinka, 0., New Marine Rotifera, 52 



Zellner, J.. Chemistry of the Higher 

 Fungi, 628 



Ziegler, — ., Hardness of Constituents of 

 Alloys, 782 



Zimmerraann, A., Bielschowsky's Method 

 for Demonstrating Connective-tissue 

 Fibres, 659 



Zimmerschied, K. W., Apparatus for Pol- 

 ishing Metal Sections, 123 



Zinc and Nickel, 257 



Zinc-Cadmium Alloys, 120 



Zodda, G., Italian Muscinese, 469 



Zopf, W., Chemical Monograph of the 

 Cladonise, 485 



— Lichens Chemically Considered, 633 

 Zuelzer, M., Influence of Salinity on Con- 

 tractile Vacuole, 461 



— Regeneration in Asellus, 454 

 Zuluetta, A. de, Lamippidae, 716 

 Zygnema, Nucleus and Karyokinesis, 332 

 Zygospores of Spirogyra in Relation to 



Theories of Variability, 739 



— of Sporodinia grandis, 623 



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