850 
INDEX. 
Nose-piece, Watson’s fixed, 236 
Notochord in Amphioxus , 614 
Notops lotos, 152 
- pygmaeus, 446 
pygmcilis [ pygmaeus ' ], 281 
ruber sp. n., 281 
Notthafft, A. von, Degeneration and Re- 
generation of Injured Peripheral Nerves, 
26 
Noury, C., Microbicidic Action of Carbon 
Dioxide, 227 
Nuclear Division in Cut Nerve-fibres, 462 
Structures, Invisibility of Living, 24 
Nuclein, New Vegetable, 752 
Nucleus, Structure of Resting, 58 
Numerical Aperture, 512 
Nun, Disease of the, 83 
Nuna, — Nine known Species of Favus, 
670 
Nusbaum, J., Development of Hepatic 
Vessels and Blood-corpuscles in Auura, 
725 
, Embryology and Histogeny of Iso- 
poda, 628 
Nussbaum, M., Reproduction and Heredity, 
307 
Nutrition of Echinoderms, 742 
Pines by Mycorhiza, 356 
Nyetitvopic Movements, 69 
Nympheeacese, Growth of Leaf-stalk, 659 
O. 
Object-finder, 781 
-holder, Griffiths’, 530 
Objectives. See Contents, xxxv 
Obregia’s Method tor Class Purposes, 411 
Ocnerodrilus, Anatomy of, 632 
OctacnemMS, New Species, 467 
Octotrocha speciosa, 146 
Ocular Nerves of Spondylus goederopus,\Q\ 
Odontaster and Allied Genera, 642 
Odontoblasts, Weil’s Basal Layer of, 308 
CEeistes brevis sp. n., 281, 448 
CEdema, Bacillus of Malignant, Action on 
Carbohydrates and Lactic Acid, 84 
(Edogonium, Fertilization of, 217 
Oehlert, D. P., Development of Brachial 
Apparatus of some Brachiopods, 317 
Oger, A., Action of Humidity of Soil on 
Structure of Stem and Leaves, 208 
Ohlmacher, A. P., Myxosporidia in Com- 
mon Toad.— Two Cliromophile Sub- 
stances in their Spores, 779 
, Safranin Nuclear Reaction and its 
Relation to Carcinoma Coccidia, 564 
Oidium albicans, Morphology and Biology, 
76 
Oidinm, Hansen’s Criticism of, 221 
Oil Formation in Schizogenous Recep- 
tacles, 753 
splitting Ferments, 71 
Oils, Localization of Fatty, in Germination 
of Seeds, 346 
Oka, A., Budding of Botryllus, 31 
Olfactory Organs of Helix, 463 
Oligochsete, New, 187, 740 
, New English Genus of Aquatic, 39, 
187 
01 1, Life -history of Rliodeus amarus, 608 
Oogenesis, 172 
Oosperm of Cystopus Tragopogonis , Mem- 
brane, 764 
Ophidians, Development of Pancreas, 724 
Ophiothricidae, Aboral Vascular Lacunae 
in, 335 
Opisthobranehs of 4 Hirondelle,’ 463 
Ophiurid, Movements of a Tropical, 194 
Oppel, A., Pocket-book of Microscopical 
Technique, 416 
Optic Nerves of Vertebrates, Development, 
19 
Optical Glass, 255 
Instruments, Czapski’s Theory of, 538 
Optics, Microscopical. See Contents, 
xxsvii 
Optic Organ of Salpa, 168 
■ Projection, 383 
Optical Tube-length, Determination, 389 
Orange, Fungus Diseases of, 223 
Orbitolites, Reproduction of, 493 
Orchideae, Mucilage-threads in Intercellu- 
lar Spaces of Roots of, 348 
, Perfume of the, 652 
, Seeds of, 653 
Orchids, Velamen of, 501 
Organogeny of Ampliiura squamata, 194 
Origin of Species, 613 
Oruithorhynchus, Brain, Examining, 802 
Ortho ptera, Anatomy and Development of 
Male Genital Armature of, 735 
Ortmann, A., East African Coral Reefs, 194 
Orya barbarica , Production of Light in, 625 
Osborn, H. F., History and Homologies of 
Human Molar Cusps, 22 
Osborne, T. B., Crystallized Vegetable 
Pioteids, 205 
“Osculum” and “Pore” in Sponges, 
Morphological Value of the Terms, 195 
Oscillatoria, Cells of, 370 
Oscillatoriaceae, Phycocyan of, 370 
Osmic Acid, Fat as affected by, 803 
Method, Kolossow’s, 410 
Solutions, Restoration of, 564 
Osmotic Experiments on Living Bacteria, 
226 
Ossicles, Development of Auditory, 154 
Otitis media, Influenza Bacillus and, 234 
Ova, Amphibian, Maturation, 21 
, Artemia salina, Parthenogenetic, 472 
, Lizards, Degeneration of Ovarian, 155 
of Mammals, Parthenogenetic Seg- 
mentation, 459 
Seorpsena scrofa, Elimination of Nu- 
clear Elements in Ovarian, 609 
