INDEX. 
773 
X. 
Xanthophyll Acid, 649 
Xylem of Proteaceae, Secondary, 67 
— of Strychnos , Phloem-islands in, 445, 650 
Y. 
Yabe, K., Fungi participating in Sake- 
making, 664 
Yeast, Action of Antiseptics on, 209 
— Fungi on Grapes, 663 
— Plaster and Brick Blocks for Growing, 
241 
Yeasts, Introduction to Study and Cultiva- 
tion, 694 
— Origin of Wine, 462 
Yegounow, A., Sur les sulfo-bacteries des 
limans d’ Odessa, 680 
Yersin, — Serum Therapeutics of Plague, 
674 
Yolk-Nucleus in Eggs of Lumbricus, 633 
— of Lumbricus , Staining, 703 
— Shell, and White of Eggs, Relative 
Proportions of, 510 
syncytium in Salmonidse, 157 
Yucca, Fruit and Leaves, 652 
Z. 
Zacharias, O., New Staining Process, 127 
— Spring Vegetation in Lake of Plon, 560 
— Structure of Volvox, 186 
— Vertical Distribution of Laoustrine 
Crustacea, 631 
Zehntner, L., Morphology of Gryllotalpinae, 
49 
Zeiss’ Achromatic Objectives, 685 
— Correction Adjustment, 687 
• — Dissecting Stands, 683 
— Lens, 498 
■ — Microscopes, 682 
— New Mechanical Stage, 97, 635 
— Optical Institute, 475 
— Patent Binoculars, 360 
I Zeiss’ Pliotomicrographic Stand, 689 
— Projection Eye-pieces, 687 
— Stand Via, 225 
Zenetti, P., Conducting System of Stem of 
Osmunda, 552 
j Zenker’s Fluid as a Fixative, 495 
! Zenker, — ., New Fixing Material, 130 
Zennick, J,, Origin of Markings in Grass 
j Snake, 40 
Zenoni, C., Staining Reaction of Sputum, 
125 
Zentmayer, J., Portable Microscope, 26 
Zernecke, — Free Nerve-endings and 
Sensory Cells in Cestodes, 537 
Ziegenbein, E., Metastasis and Respira- 
tion of Germinating Potatoes, 75 
Ziegenhagen, — ,. Vascular System of Sal- 
monid Embryos, 158 
[ Ziegler, H. E., Compressorium, 367 
Zimmermann, A., Aleuron e-grains, 66 
i — Protein-crystalloids, 66 
— Manual of Microscopy, 371, 691 
! — Starch-grains, 66 
j Zippel, — ., Poisonous Properties of Pent- 
cillium glaucum, 81 
j Zoanthus chierchiss, 436 
Zoja, R., Coloured Cells in Ectoderm of 
Hy droids, 320 
— Experimental Embryology, 30 
— Minute Structure of Hydra, 185 
Zondek, M., Development of Auditory 
Ossicles, 289 
Zonula and Ora Serrata, 293 
Zoological Position of Trilobites, 631 
I Zoophyletic Law of Development, 158 
j Zoospores of Phycomycetes, Cilia, 207 
— of Pythium and Ceratiomyxa, 80 
I Zopf, W., Cohn’s Hsematochrome, 555 
j — Germination of Myxomycetes, 211 
- — Pigments of Lichens, 665 
| Zoth, O., Simple Cover-glass Holder, 496 
Zschokke, F., Fauna of Lakes of Jura, 42 
Zukal, H., Structure of Cyanophycese, 213 
Zupnik, L., Preparing Clear Agar, 700 
Zur Strassen, O., Tubular Organ of Oncho- 
laimus , 57 
i Zygomorphic Flowers, Movements, 74 
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