INDEX. 
883 
Nawaschin, S., Microspores of Sphagnacf ce, 
73. 
Nectaries of Pteris aquilina , 775. 
Nectary-covers, 63. 
Nectonema agile, 472. 
Nelson, E. M., Apparatus for obtaining 
monochromatic light, 439, 443, 556. 
Bull’s-eyes fur Microscope, 299, 309, 
431. 
, New Centering Substage, 257. 
, Substage Condenser : its History, 
Construction, and Management ; and 
its effects theoretically considered, 
90. 
Nelumbium, Embryo of, 763. 
Nemathelminthes. See Contents, xvi. 
Nematobothrium , External Differences in 
Species of, 45. 
Nematodes, Arabian, 349. 
, free, Mode of Studying, 422. 
of Mammalian Lungs and Lung 
Disease, 43. 
, Study of, 540. 
Nencki, — ., Isomeric Lactic Acids as 
criteria diagnostic of certain species of 
Bacteria, 615. 
Neomeris, 75. 
Nepenthes , Digestive Properties of, 375. 
Nephelis , Embryology of, 471. 
Nephridia, Anal, in Acanthodrilus , 347. 
in Oligochseta, 194. 
Nephridium of Lumbricus and its Blood- 
supply, 470. 
Nerve-cells, New Characteristics of, 420. 
, Staining Motor, of Torpedo, 
287. 
, Structure of, 716 
■ , Upson’s Gold-staining Method 
for, 425. 
centres of Limulus, Structure of, 
36. 
, Position of, 326. 
— — end Plates in Tendons of Vertebrata, 
427. 
Fibres, Optical Characters of Me- 
dullated and Non-medullated, 325. 
, Staining Medullated, with 
Hsematoxylin and Carmine, 286. 
stain, Kultschitzsky’s, 287. 
Nerves, Demonstrating Structure and 
termination of Muscular, in (Edipoda 
fasciata, 421. 
, Staining Axis-cylinder of, with 
Haematoxylin, 425. 
, Medullary Sheath of, of Spinal 
Cord, 427. 
, Terminations of, in Insect 
Wing Muscles by Golgi’s Method, 288. 
, Terminations of, in Ganglia of Inv.cr- 
brata, 718. 
Nervous Cells r Structure of, 24. 
• System, Central, Development in 
Blatta germanica, 341. 
Nervous System, Central, Impregnation 
with Mercurial Salts, 420. 
, , in Limax maximus, 176. 
, , of Pulmonata, 722. 
, Enterocoelic, of Echinoderms, 
49. 
, Histology of, of Hirudinea, 
597. 
of Cyprxa, 27. 
of Uiaptomus, 344. 
of Monocotylidea, 600. 
of Parmophorus australis , 26. 
, Preparation of, of Hirudinea, 
684. 
, Sympathetic, in Mammals, 
321. 
Tissue, Preparing, of Amphibia, 420. 
Nervures of Wings of Butterflies, Develop- 
ment of, 338. 
Netchaeff, P., Phagocytes in relation to 
Infectious Pathogenic Micro-organisms, 
392. 
Neuhauss, R., Magnesium Flash-Light in 
Photomicrography, 812. 
Neumann, E., Examining Bone Marrow 
for developing Red Corpuscles, 275. 
Neuroglia, Histogenesis of, 578. 
Newberry, J. S. Sphenophyllum, 500. 
Newspaper Science, 677. 
Newts, Fertilization of, 576. 
Nias, J. B., Cleaning Used Slides and 
Cover-glasses, 833. 
Nickel, E., Tannins and Trioxy benzols, 
498. 
Nicolaier, A., Artificial Preparation of 
Sphaeroliths of Uric Acid Salts, 353. 
Nicotin, Action of, on Invertebrates, 327. 
Niemilowioz, — ., Peculiar Disease of 
Bread, 239. 
Nitrates, Reduction of, to Nitrites, by 
Plants, 220. 
Nitrification, 83. 
by a Schizomycete, 626. 
Organisms, and their Cultivation, 680. 
Nitrifying process and its Specific Fer- 
ment, 374. 
Nitrogen, Absorption of, 218. 
, Atmospheric, by Plants, 496. 
— — , Assimilation by Robinia, 218. 
, by Plants, 370. 
of free Atmospheric, 771. 
, Inorganic Compounds, Behaviour of 
lower Fungi towards, 227. 
in Plants, Passive Circulation of, 626. 
Nitro-indol, Red, Reaction us Test for 
Cholera Bacilli, 242. 
Noctiluca, Conjugation in, 484. 
Noctilucse, Colouring Power of, 839. 
Noll, F. C., Demonstrating Structure of 
Siliceous Sponges, 422. 
, F., Influence of External Factors on 
Formation and Form of Organs, 490. 
Nomenclature of Chicken Embryos, 318. 
o Q 2 
