806 



INDEX. 



Nitrogen-fixing Organisms in Sea-water of 



tlie Gult or xVaples, 723 

 Noack, — ., Development ot the IMiddle 



Ear in Emys europxa, 287 

 Nobili, G., Deciipods of t]ie Ked Sea, 42 

 Noelli, A., Two Species ofPeronospora.340 

 Norton, J. B. S., and others, Phmt 



Diseases, 79 

 Nosema in Shore-Crab, 54 

 Note on a New Prismatic Ocular, 762 

 Nothochlsena and Pellsea, Apogamy, 44G 

 Notommata (Copeiis) cerhenis, 558 

 Notoneda glauca. Studying the Sperm- 

 cells, 494 

 Notoryctes typhlops. Anatomy, 540 



Eye, 153 



Nototbylas, Development of Sporogonium, 



585 

 Nosvikotf, IM., Minute Structure of Parietal 

 Eye in Lacerta and Anguis, 413 



— Parietal Eye of Lizards, 540 

 Nuclear Division in Spirogyra, 5G5 

 Nuclear Phenomena in Aggregata eherthi, 



435 

 Nucleus and Kinesis ia Spyrogyra, 

 Studying, 49G 



— of Aggregata, 54 



— of Trypanosomos. 177 

 Nudibranchs, Antarctic, 543 

 Numeration of Blood-platelets, 504 

 Nuphar and Nymphaja, Development of 



Pollen, 317 



Nusbaum, J., Yiviparity in Proteus 

 anguineuf, 415 



Nussbaum, M., Internal Secretion and 

 Nerve Influence. 27 



Nutrition of Seed Plants. See Contents, 

 xxiv 



Nuttall, G. H. F., Morphology and Life- 

 history of Piroplasma cam's, 178 



Nvmpliaja and Nuphar, Development of 

 Pollen, 317 



Nymphajaceaj, Cuban, Embryogeny, 440 



Is'yDiphon ■paras it icum, 303 



O. 



Oberhoffer, P., Specific Heat of Iron, 757 

 Obholzer, A., Piping in Steel Ingots, 637 

 Obituary, Siegfried Czapski. 40/ 

 Obiect Slide, Simple Movable, New 



Model, 628 

 Objective, Koristka's G^, 731 



— New J-inch Semi-apochromatic of 0'74 



Aperture, 762 



— Oil-immersion, Koristka's y-^, 731 

 Objectives, Deteraiimition of the Pro- 

 perties, 620 



— Leitz' Photographic, with Iris Dia- 



phragm, 484 



— Yoigtlander & Sons', 731 



— See CoxTEXTS, xsxvi 



Ocular, Microscope, New Piismatic, 643 



— Siedentopf's Microscope, with Quartz- 



wedge Compensator, 61!) 

 Odontophore oiSycotypns canal iculatus.l&O 

 Oeder, E., Buccal Glands and Dental 



Strands in Anura, 149 

 CEdogoniacea?, 336, 591 

 OEnocytes of Torymus nigrleorms, Fixing 



and Staining, lOS 

 (Enothera, Hybridisation and Germ-cells, 



686 

 OEsophagus, Organogenesis, 661 

 (Estridae, African. Notes, 300 

 Ohno, Y. K., Types of Bacilli of Ihe 



Dysentery Group, 217 

 Oikopleura, Embryology, 670 

 Oil - immersion "Condenser, Koristka's 



Achromatic, 629 

 Oka, A., New Si^ecies of Pectinatella from 



Japan, 430 

 Oka, J., Japanese Ascidians, 159 

 Okamura, K., Plankton of the Japanese 



Coasts, 452 

 Okamurrea and Orthomniopsis, 328 

 Olfactory Sense in Ants, 37 

 Oligochffita, Neotropical, 679 



— Swiss, 169 



Olive, Enemies of, 301 



Oliviei', E., Perdrix montana, 663 



Olt, — ., Gelatin-formalin Method of 



Sticking Microscopic Sections to the 



Slide, 109 

 Oogenesis in Paludtna vlvipara and 



(Jhromidia in Paludina and Helix. 



Studying, 497 

 Opercularia, A'ariability of Commensal 



Forms, 312 

 Operculum of Spirorbis, 679 

 Ophiacantha vivipara. Sexual Dimori^hism, 



431 

 Ophioglossaceae, Mori^hology of the Sporo- 

 phyll, 445 



— Studies, 693 



Ophioglossalcs, Sporangium, 694 

 Ophris aranifera, Variation, 185 

 Opliryotrocha puerills, JMaturation - pro- 

 cesses, 45 



Ophthalmometer and Ophtlialmic Micro- 

 scope, Ettles-Cuities, 386, 481 



OpistJiorchis feliiieus in INIan, 682 



Opisthoteuthis depressa, 159 



Opsonic Properties of Normal and Specific 

 Serums, 469 



Optical Images, Nature, 486 



— Properties of Thin Bletallic Plates, 



Numerical Examination, 104 



— Systems, Iris of, 229 



Optics, Microscopical. See Coxtents, 



xxxviii 

 Orang-Utan, Eelationships, 29 

 Organ, Undescribed, in Ihorax of Winged 



Ants, 162 

 Organisms, Leduc's Artificial, 293 



