682 



INDEX. 



Weissia crispata, 178 

 Wellheim, F. R. v.. Stereography, 528 

 Welsford, E. J., Polystigma ruhrum, 87 

 Wenig, J., Albino Tadpoles of Toad, 279 



— Development of Ear in Anamnia, 151 

 Werth, E., Spore-formation in Rust and 



Smut Fungi, 189 



— Study of Rust on Sempervivum, 309 

 Wesche, W., Minute Structure of Diptera, 



66 

 West, G. S., Fresh-water Algse, 83 

 Westerdijk, J., Plant Diseases, 93 

 Wheldon, J. A„ Lichens of Arran, 612 

 Whitefish, Alpine, Parasitic Copepods on, 



290 

 Whitehead, H., British Fresh-water Tur- 



bellaria. 3S7 

 Whiteley, W., The Silver-zinc Equili- 

 brium, 332 

 Whooping-cougli, Organism of, 413 

 Wietrzkowski, W., Development of Lucer- 



narians, 71 

 Wijnhoff, G., Structure of Ceplialothrix, 



294 

 Wilke, Origin of Mitochrondria in Sex- 

 cells, 153 

 Wille, N., Algological Notes, 304 



— Fresh-water Algse of Samoa, 403 



— Ulothrix flaccida, 305 



Willem, v.. Ova and Vitelline Cells in 



Entomostraca, 386 

 Williams, R. S., Husnotiella, 300 



— North American Mosses, 400, 599 

 Williamson, H. C, Parasites of Fishes, 



497 

 Winder, P. L., 645 

 Wine Bacteria, 196 

 Wing-viens of May-flies, 288 

 Winge, O., Myrioconium scripi, 406 

 Wink( I's Motor-driven Grinding Machine 



for Microscopical Sections, 429 

 Winter, L. de, Ova and Vitelline Cells in 



Entomostraca, 386 

 Wisselingh, C. van, Eunotia major, 304 



— Nucleus of Closterium, 499 

 Wittorf, Iron-carbon Alloys, 218 



Wolff, F. A., Gnomonia Caryx and Glceo- 



sporium Caryse, 88 

 Wolff, M., New Geiger Microscope Eamp, 



527 

 Woloszyiiska, J., Fresh- water Phytoplank- 



ton of Java, 180 

 Wood, Tropical, Structure of, 172 

 Woodburn, W. L., Spermatogenesis in 



Blasia, 177 

 Woodhoad, Prof. G. Sims, (J41, 643 

 Working Aperture, Measurement of, 363 

 Worm-nodules in Cattle, 162 

 Worms, Flat, Wound-healing in, 585 

 Wound-healing in Flat Worms, 585 

 Wright, F. E., Index Ellipsoid (Optical 

 Indicatrix) in Petrographic Micro- 

 scope Work, 212 



Wright, F. E., Oblique Illumination in 

 Petrographic Microscope Work, 211 



Wu-Lien-Teh, Relation of the Tarbagan 

 to Plague, 614 



Wiilfing's Grinding Machine, Automatic 

 Grinding-attachment for, 429 



— Rock-slicing ]Microtome, 427 



X-rays, New Application of, Micro-radio- 

 ; graphy, 373 



i Xylaria, Study in the Development of, 



i 405 



Yabe, H., Rock-forming Corallinaceas, 84 

 Yamanouchi, S., Cutleria, 185 



— Hydrodictyon, 182 



Yatsu, N., Experiments on Ctenophore 

 Ova, 70 



— Spermatogenesis in Silk-moth, 384 

 Yeast, New, 511 



Yezierski, W., Washing Apparatus, 214 



Yolk-nucleus, 150 



Young, E., Explosion of Starved Ciliata, 



390 

 Young, R. T., Histogenesis of Gonads of 



Tsenia pisiformis, 293 



Z 



Zacharias, O., Chromatin Diminution in 

 Ascaris Blastomeres, 161 



— Fertilization Phenomena in Ascaris 



megalocephala, 68 



— Minute Structure of Oviduct of Ascaris, 



291 

 Zarnik, B., Chromatin of Ovum of Creseis, 



285 

 Zeiss, C, New Achromatic Objectives, 420 



— Presentation of Prof. Sigtuund's Histo- 



logical Preparations, 638 



— Simplified Binocular Stand, X B., 419 

 Zemczuzuy, S. F., Cadmium-arsenic 



Alloys, 433 

 Zieglvvallner, F., Formula for the Chrom- 



osmic-acetic Acid Fluid, 535 

 Zimmermann, S., Development of Skull 



of Anguis fragilis, 569 

 Zodda, G., Mosses of South Italy, 301 

 Zonula, Fibres of, 58 

 Zschimmer, E., Fluor-Crown, a New 



Optical Glass, 531 

 Zygopteridese, Frond of, 176 

 Zygopteris Grayi, 78 

 Zygorhchynus, Conjugation in, 403 

 Zygospore-formation in Phycomyces nitens, 



606 



