INDEX. 



777 



Nickerson, Margaret, Epidermal Organs 



of Pliascolosoma, 203 

 Nicotra, L., Elasticity of Tension of Vege- I 

 table Organs, 344 



— Heterocarpy of the Composite, 480 

 Niessing, G., Structure of the Cell, 21 

 Nissl's Method, Modification, 395 

 Nitragin in the Nodules of Leguminous 



Plants, 34!) 

 Nitrification, Recent Researches, 355 

 Nitrogen, Absorption by Leguminoase, 82 



— Free Atmospheric, Assimilation by the 



Aerial Parts of Plants. 352 



— Influence on the Growth of Roots, 220 

 Nitrogen-Assimilation of Green Plants, 



696 

 Nobbe, F., Action of Leguminous Root- 

 nodules in Water Cultures, 486 



— Inoculation of Beans with the Nodule 



Bacteria of Peas, 621 

 Noctiluca, Nuclear Division, 593 

 Nodule Bacteria of Peas, Inoculation of 



Beans with, 621 



— Organism of Leguminosse, 496 



— ■ Cultivating and Staining, 518 



Nodules of Leguminous Plants, Nitragin 



in, 349 

 Noll, F., Apparatus for Spore-sowing, 256 



— Differentiated Proteinaceous Substances 



in Derbesia, 229 



— Geotropism, 695 



— Influence of the Curvature of the Root 



on the Production and Arrangement 

 of the Lateral Roots, 696 



— Warm Cupboard for Germination Pur- 



poses, 257 



— Writing on Glass, 405 

 Non-nucleated Orgauisms, Cytology, 697 

 NordenskiiJld, F., Norneria gigns, 48 

 Nordhausen, M., Tendrils of Alsjje, 226 

 Nordstedt, C. F. O., Index of Desmids, 



490 

 Norman, A., Photomicrographic Notes, 388 

 Norman, Canon, British Amphipods, 325 

 Norneria gigas, 48 

 Nosske, H., Method for Demonstrating 



Actinomycotic Appearances in Tubercle, 



401 

 Nostrils of Aquatic Snakes, 061 

 Notheia anomala, 226 

 Notogonia ehrenbergii, 678 

 Notopteris borneensis. Air-bladder, 452 

 Nuclear- and Cell-division in Dictyota, 612 



— Division in Noctiluca, 593 

 Nuclei, Fusion, 73 



— Giant, 448 



— Multiplication in Striped Muscle of 



Vertebrates, 659 



— of Bacteria, 369 



— of Endoglobular Parasites of Birds, 



Method for Staining, 264 

 Nucleoli, Importance of, 180 



— of Central Nerve-cells, 22 



Nucleolus in Insect Hypodermic Cells, 



Structure, 456 

 Nucleus, Amitotic Division, 684 



— Chromatolysis, 341 



— Division in Vegetative Cells, 73 



— Effect of Cold on, 478 



— Framework, 340 



— Function, 566, 657 



— New Theory, 566 



— Peculiar Kinds, 341 



— Position and Function, 475 

 Nudibranchs, Abbreviated Development, 



455 



Nusbaum, J., Innervation of Vascular Sys- 

 tem in Higher Crustaceans, 49 



Nutation of the Sunflower, 696 



Nutmeg, Dehiscence, 79 



Nutrient Media of " Standard" Reaction, 

 727. 



— Medium, New Coloured, and Appear- 



ances Produced therein by certain 

 Micro-organisms, 124 

 Nutrition, Air and Water as Factors in, 31 



— of Phanerogams. See Contents, xxv 

 Nutritive Medium for detecting Sulphide 



Formers, 391 

 Nuttall, G. H. F., Apparatus for Making 

 Roll-cultures, 640 



— Role of Insects, &c, as Carriers of Dis- 



ease, 43, 456 

 Nutting, C. C, Utility of Phosphorescence 



in Deep-Sea Animals, 32 

 Nypels, P., Parasitic Fungus, 494 



O. 



Object-glasses of Andrew Ross, 434 

 Object-pusher, Mayer's Simple, 516 

 Objectives. See Contents, xxxv 



— Leitz' Achromatic and Apochromatic, 



250 

 for the Edinger Apparatus, 251 



— Modern Apochromatic, 115 

 Ocelli in Tipulidse, 320 

 Ocellus, Middle, of Insects, 666 

 Odonata, Is there Parallelism between Old 



and New World? 193 

 QSnanthe, Fruit, 79 

 Officers, 151 

 Ohlmacher, A. P., Method for Fixing and 



Staining Nervous Tissue, 399 

 Oil-Cells and Oil, 77 

 Oil, Formation in the Olive, 342 



— Fungi in, 493 



— Secretion by Calcareous Lichens, 236 

 Oligochaeta, American, 326 



— Heart-body, 673 



— North American, 584 



— of Illinois, 326, 464 



— Swiss, 56 



Omeliansky, V., Fermentation of Cellulose, 

 609 



