82G 



INDEX. 



Young, M. C. W. Ammonio-silver Method 

 for Stainiug Cancerous Tissue, 752 



Young. \V., Rhaconiitriuni ramulosum: 

 a British INIoss, 100 



Young, W. J., Development and Embryo- 

 logy oi Meldotux alba, 441 



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

 Intestine, 31 



Zacharias, K., Literature of Cyanophyce<B, 



703 

 Zahlbriickner, A.. Grecian Lichens, 722 



— Lichens of Dalmatia, 721 



Zander, E., Gill-filters of Deep-sea Fishes, 



157 

 Zavrel, J., Eyes of Diptera, 546 

 Zederhauer, E., Plankton of Eastern Alps, 



451 

 Zeiss' Anastigmatic Magnifiers, 219 



— Appliances for Counting Blood-cor- 



puscles, Yeast-cells, Bacteria, 502 



— Comparison Spectroscope for Colour 



Technology. 225 



— Dark-ground Illumination by 8topping- 



off in the Immersion Condenser, 485 



— Hand Spectroscopes, 227 



— Ueat-Microscopes, G15 



Zeiss' jMicroscopical Observations at High 

 Temperatures : Gas-heat Condenser 

 and Air-cooling Apparatus, 612 



— Verant Lenses, L19 



Zeleny, C, Dilferentiatinn in Regenerating 

 Antennule of Asellus, 552 



— Regeneration of Vestigial Organs, 425 

 Zelikow, J., Quantitative Estimation of 



Bacterial Mass by the Colorimetric 



Method. 234 

 Ziegler. H. E., Tracheae of Julus. 423 

 Zikes. H., Tropism and Geotaxis of Bac- 

 [ terium Zopfii, 216 

 Zimmerman, — ., Germination of Solerotia 



of Claviceps purpurea, 75 

 Zinc and Iron Alloys, 115 

 Zingiber o^cinale. Bacterial Disease, 87 

 Zodda, G;, Sicilian Brvonhvtes, 6i)6 

 Zograf, N. v., Phyllopod Studies, 678 

 Zoological Technique, 153 

 Zopf, W., Biological and Morphological 

 Observations on Lichens, 211 



— Gall-formation in Lichens, 601 

 Zschacke, H., Moss-flora of the Harz, 66 

 Zschokke, F., Lacustrine Deep-water 



Fnuna, 296 

 Zweiger, H., Spermatogenesis of Forficula 



auricularia, 39. 243 

 Zygospores, Culture Medifim, 74 



— o{ lihizopus nigricaii', 341 



ADDENDUM. 



THE SOCIETY'S STANDARD EYE-PIECES. 



Owing to the notice of the Standardisation of the Eye-pieces being 

 published in the Report of the Council for 1899, it escaped being indexed in 

 the Volume for 1900, and Fellows interested in the subject are requested to 

 enter in the Contents, p. xxxy, and Index, p. 761, after "The Society's 

 Standard 718,'' 1 41, 147. These will complete the refe^rences to the subject 

 in the Volume for 1900. 



LONDON : PKINTED Et WILLIAM CLOTCES JlSI> SONS, LISnTED 

 GBEAT WINDMILL STBEET, W., AND DUKE STREET, STAaiFOED STliEET, 3.S, 



