820 



INDEX. 



Nuclear Membrane, Relationship to the 

 Protoplast, 506 



— Reduction and Fertilisation in Paris 



and Trillium, 4S 



— Structure, Criticism of Theories, 27 

 Nuclei, Behaviour in Plant Hybrids, 506 



— in Yeast and Animal Cells, Study, 



205 



— of Unicellular Animals contrasted with 



those of Plant Cells, 47 

 Nucleolar Changes in Secretion of Hepa to- 

 Pancreatic Cells of Hermit-Crab, 17S 

 Nucleolus, Observations, 49 

 Nucleus in Smooth Muscle, Structure, 596 



— of Spirogyra, 48 



— of Spore-cavity in Prothallia of Mar- 



silia, 320 



— Parental and Grand-parental Compo- 



nents, 281 

 Nudibranchs, Nematocysts, 291 

 Numerical Aperture and Rapidity, 765 

 Nutting, E. S., Fixing of Blood- Films and 



the Triacid Stain, 229 

 Nypels, P., Disease of the Alder, 641 



O. 



Objective, Correction Distance, Graphic 

 Representation, 762 



Objectives, Injurious Effect of Cement 

 upon, 762 



Objects, Small, New Method of Imbed- 

 ding, 233 



Ooular, Bourguet's New Index, 91 



Odin, G., Origin of Yeast, 68 



OMogoniuni, 65 



CEstrous Cvcle and Corpus luteum in 

 Sheep, 484 



Oestrup, E., Diatoms of Koh Chang, 330 



Oidium Production and the Culture of the 

 Higher Fungi, 75 



Okamura, K., Japanese Marine Alga?, 744 



— Vegetative Reproduction in Chondira 



crassicaulis, 330 

 Oligochaeta?, Kxamining, 106 



— Typical Chloragogen, 300 

 Olive, E. W., Acrasiese, 752 

 Oliver, F. W., Fossil Fungi, 534 



— Lagcnostoma Lomaxi, the Seed of 



LvKinodendron, 622 

 Onion, Starch-Grains in Root-Cap, SOS 

 Onychophora, Modes of Development. 297 

 Oogenesis and Spermatogenesis in Sagitta 



bipunctata, 498 

 of Cyclops drenuus, Maturation Phe- 

 nomena, 39 



— in Lepidoptera, 496 



— in Mammals, Note. 22 



— in Saprolegnia, 612 

 Ophidia, Ilasmogregarines, 307 

 Opisthobranchs from Gulf of Siam, 32 



Optical Images, On the Theory of, with 

 Special Reference to tl.e Micro- 

 scope, 447 



Supplementary Paper, 474 



Optics, Drude's Theory, 765 

 Orchids. Germination : a Symbiotic Re- 

 lationship, 737 

 Orfeur, F., 241 



Ornitborhyncus, Early Stages in Develop- 

 ment, 282 

 Orthoptera, N. African. Chemical Defence 

 and Other Adaptations, 174 



— Saltatorial, Stridulating Organs, 296 

 Orthotrichum in the United States, 196 

 Osborn, H. L., Peculiar Fluke, 303 

 Oecillaria prolifica, Chemical Composition, 



76 

 Osculatia and Schwetschkea, Notes, 60 

 Osmotic Pressure of different Media, Re- 

 sistance of Gasterosteus aculeatus, 714 



— Properties of Cells of Cyanophycea;, 65b 

 Ostenfeld, C. H., Diatoms of Koh Chang, 



330 



— Phytoplankton of Lakes in the Faeroes, 

 744 



Ostergren, H., Ether as a Narcotising 

 Medium for Aquatic Animals, 36S 



Osterwald, K, and Another, German 

 Muscineae, 524 



Otocysts of Polychseta, 301 



Oudemans, C. A. J. A., Critical Notes 

 on Fungi, 76 



— Fungus Flora of Humus, 74 

 Oudemans, J. T., Position of Repose in 



Lepidoptera, 719 

 Ova, Influence of Radium Rays on, 483 



— of Ascaris, Unfeitilised, in Human 



Fseces, 614 



— of Cridiceps argentatus, Artificial 



Fertilisation, 593 



— of Starfish, Experiments, 501 



— Ovarian, and Follicles in Fishes, 504 

 Ovarian Follicle of Amphibians, Retro- 

 gressive Changes, 22 



Ovary and Testis, Mammalian, Embryonic- 

 Develo2)inent, 706 



— in Cephalopods, Structure, 490 

 Ovule, Development in Casuarina, 736 



Pace, S., Structure ot Pontiothauma, 491 

 Pailheret, F., Action of Alcoholic Fermen- 

 tation on the Bacillus typhosus, SO 

 Paired Limbs of Vertebrates, Origin. 29 

 Palacky, J., Geographical Distribution, 



167 

 Paleearctic Forms ofClausilia, Synopsis, 492 

 Palseospondylus, 714 

 Palaeozoic Stems, Primary Structure, 193 

 Pallaci, (>.. New Parasitic Fungi, 206 



