748 
INDEX. 
Nussbaum, M , Progressive Differentiation 
of Cells in Course of Development, 32 
Nutrient Media for Bacterial Cultivation, 
Proper Reaction, 690 
Nut, Cocoa-, Germination, 438 
Nutrition, Non- Bacterial, 223 
— of Phanerogamia. See Contents, xxi 
Nuttall. See Dixon-Nuttall 
Nuttnll, — Animal Life without Bacteria, 
178 
Nuttall, G. H. F., Simple Thermostat 
applicable to any Microscope, 253 
Nutting, C. C., Plymouth Hydroids, 319 
O. 
Oak-leaved Hornbeam, 538 
Object-Glasses, Standard Screw-Thread, 
389 
Object-Holder, Aluminium, for Observa- 
tion of Objects on both sides, 677 
— - — for the Observation of Objects 
enclosed between Two Cover-Glasses, 579 
Objective, Collar-Adjustment, as affected 
by change of Eye-Piece, 127 
— Modern Microscopic, 241 
— New Double, 560 
Objectives. See Contents, xxx 
— Determination of Focal Length, 242 
— Method of Measuring Apertures, 705 
— R.M.S., Standard Screw for, 487 
Oblito-Schizogenous Secretion-Receptacles 
of Myrtacem, 203 
O’Brien, M., Proteids of Wheat, 202 
Occipital Segment, Development, 33 
Oclithera , 404 
Octocotylidae, 530 
Octopod, New, 302 
Ocular Iris-Diaphragm with Eye-Piece, 
Czapski, 120 
OCdema in Cow, Malignant, 459 
CEdomyces leproides, 448 
CEuothera, Opening of Flowers, 330 
Oesophageal Gland, Supra-, of Hxmentaria 
officinalis, 525 
Ogata, M., Sp >rozoa of Vaccine Lymph, 196 
Ogilvie, M. M., Microscopic and Systematic 
Study of Madreporarian Types of Corals, 
317 
Ohlin, A., Malacostraca of Baffin Bay and 
Smith Sound, 409 
Ohlmacher, A. P., Improvements in Tech- 
nique of Diphtheria Culture Test, 249 
Oidinm albicans as Patnogenic Agent, 451 
Oil-Production, Transport and Consump- 
tion, 209 
— Secretion by Lichens, 95 
Oka, A., Budding in Syllis ramosa, 63 
— “Excretory Organ” of Freshwater 
Polyzoa, 304 
— New Japanese Land-Leeches, 312 
Oligochset i of Zurich, 416 
-— Notes, 525 
Oligoehmta, Pacific Coast, 312 
Omori, J., Parasitic Fungi, 450 
Onoclea, Vegetative and Fertile Leaves, 
211 
Ontogeny, Preliminary Catalogue of Pro- 
cesses concerned, 168 
Oocystis ciliata v. radians , 161 
Oogenesis in Tubularia, 636 
Opaque Objects, Pbotomicrographic 
Camera designed chiefly to facilitate 
Study, 595 
Operculum of Birds, 294 
Ophioglossaecse, Sporophyte, 331 
Opldurans, New, 423 
Opliiurids of Recent Expeditions, 531 
Ophryotrocha puerilis, Maturation and 
Fertilisation, 188 
Opilionidse, Secondary Spiracles of, 407 
Opisthoteuthkke, 509 
Oppel, A., Stomach Glands of Vertebrates, 
295 
Optic Lobes in Cephalopods, Histology, 301 
Optical Images, with special reference to 
the Microscope, On the Theory of, 681 
— Reaction of Connective Substances to 
Phenol, 177 
— Rule, Stanley’s, 135, 464 
— Works of C. P. Goerz in Berlin, 563 
Optically, New Way of producing Colour- 
Contrast, 373 
Optics at the North German Exhibition, 
Lubeck, 1895, 127 
— Microscopical. See Contents, xxxi 
Orclridese, Saprophytes, 325 
Orchids, Abnormal Structures in, 85 
— Anguillulidae, 66 
Orford, H., Modern Microscopic Objective, 
241 
Organs of Phanerogamia. See Contents, 
xx 
Origin of Acquired Characters, 27 
— of Vertebrates, 167, 598 
Ornamentation, Shell, Development, in 
Marine Gastropods, 303 
Orobanche, Growth, 209 
Orthonectid in Annelid, 316 
Orthoptera, Physiology, 182 
Ortmann, A. E., Geographical Distribu- 
tion of Hippidea, 411 
— Separation and its Bearings on Zoo- 
Geography, 502 
Oryza , Rust, 337 
Oscillatoria splendida v. attenuata, 165 
Osmose. Influence of Temperature, 650 
— - Role in Transpiration, 542 
Osteomyelitis caused by Bacillus of 
Typhoid Fever, 555 
Osterhout, W. J. V., Life-History of Rhab- 
donia , 655 
— Media for Preserving Algae, 481 
Ostracoda, Monograph, 310 
— Striped Muscle in, 412 
Otocys'ts of Crustacea and Equilibrium, 409 
