INDEX. 



881 



Oviiliferous Scales of Couifcrre, 777. 

 Ovum in Lamjirey, Maturation and Fer- 

 tilization of, isy. 

 of Ceplialopods, New Phenomenon of 



cleavage in, 734. 

 Owen, Letter of Darwin to, 454. 

 Oxalic Fermentation, 5.50. 

 Oxalis, Triiiiorpliism of, 6G7. 

 Oxidation, Process of, in Living Cells, 



550. 

 Oxygen, Action of, under High-pressure 



on Growth, 90. 

 , Fiee, Decomposition of AHmmen in 



the absence of, 92. 

 , , Products of the Decomposition 



of Albuminoids in the absence of, 253. 

 , Intiuence of, in the Decomposition 



of Albuminoids, 783. 



Pressure, Protoplasmic Movements 



and their Relation to, 732. 

 0.^vhvdrogen Microscope, Hughes' Patent, 



ho. 



Oyster and allied Genera, Development of, 

 375. 



Paolelti's (V.) Improved Microtome, 710. 



Pachysterigma, 5H4. 



Packard, A. S., Factors in the Evolution 



of Cave Animals, 191. 

 Palaimon, Sarcosporidia in Muscles of, 



76. 

 ■ serratus, Coelom and Nephridia of, 



749. 

 Palisade-parenchyme, 82, 241. 

 Palladin, "W., Decomposition of Albumen 



in the absence of free oxygen. 92, 253. 

 , Influence of Oxygen in the Decom- 

 position of Albuminoids, 7S'd. 

 Palm-wine, Fermentation of, 2G6. 

 Palmella uvjeformis and Draparnaldia 



glomerata. Genetic Connection of, 95. 

 Palps in Insects, Function of, 742. 

 Panimel, L. H., Perforation of Flowers by 



Insects, 667. 

 Pangenesis, Intracellular, 547. 

 Panic Fermentation, 253. 

 Pantocsek, J., Finder, 121. 

 Pantopoda, Morphology and Larvae of, 509. 

 Papilionacoffi, Bacteria of the Tubercles of, 



430. 

 , Intercellular Spaces in the Tegument 



of the Seed of, 775. 

 Pappenheim, K., Closing of the Bordered 



Pits in Coniferae, 542. 

 Paraffin, Imbedding in, 462. 

 Oven with Simple Arrangement for 



Maintaining a constant Temperature, 



156. 

 Parallel Forms, 415. 

 Parasite, New, of Amphiura, 54. 

 Parasites on Trees, 93. 

 Parasitic Fungi, new, 264. 

 on lower animals and plants, 



423. 



Parasitic MoUusca, New Genus of, 374. 



Monad, 399. 



Paris Exhibition of 1889, Microscopical 



Laboratori( s at, 703. 

 Parthenogenesis of Death's-head Moth, 



208. 

 Pathogenic Fungus from tlie Human Ear, 



787. 

 Pathology, Vegetable, 105. 

 Patoiiillard, N., Coleopuccinia, 564. 

 Patten, W., Segmental Seuse-Organs of 



Arthropods, 504. 

 Peach-yellow, 792. 

 Pear, Sclerenchymatous Cells in the Flesh 



of, 242. 

 Peck, J. I., Anatomy and Histology of 



Cymbuliopsis calceola, 734. 

 Pecten, Eyes of, 38. 

 Pelletan, J., Distinction between " micro- 



graphes " and "micioscopistes," 703. 

 , Microscopy at the Universal Ex- 

 hibition of 1889, 703, 831. 

 Pelseneer, P., Abranchiate Lamellibran- 



chiata, 740. 



Anatomy of Deep-sea MoUusca, 369. 



Innervation of Osphradium of Mol- 



lusca, 733. 

 , Morphology of Spinous Sacs of GjTn- 



nosomatous Pteropoda, 496. 

 Systematic Position of Desmopterus 



papilio, 731. 

 Penard, E., Dino-Flagellata, 399. 

 Penhallow, D. P., Nematophyton, 560. 

 Penicilliopsis, a new genus of Ascomy- 



cetes, 424. 

 Peuicillium glaucum, Presence of a Sul- 

 phurous Oil in, 426. 

 Penuatula phosphnrea. Structure and De- 

 velopment of Colony of, 229. 

 Pennatulida of Mergui Archipelago, 529. 

 Pennatulids, French, 393. 

 Penny, R. G., Microscope Objectives — 



Angular Aperture, 135. 

 Pentastomum denticulatum in Cattle, 



Migrations of, 212. 

 Peragallo, — ., Mediterranean Diatoms, 427. 



, Preparing and Mounting Diatoms, 



169. 

 Pereyaslawzewa, S., Development of Am- 



phipoda, 511. 

 , Investigation of Ova of Caprella 



ferox, 599. 

 Perez, J., Descent of Ova in Helix, 497. 

 Pericardial Gland of Annelids, 215. 

 Perichffita, Coccidium infesting, 76. 

 Perichsetidse, Indian, 220. 

 Pericycle, 659. 

 Periderm and Assimilating Tissue in 



Ic'iifless plants, 541. 



, Formation of healing, 776. 



, Researches on, 406. 



Peiipatus, Brain of, 745. 



Maturation of Ovum in, 507. 



Nova3-Zealandiae, Development of, 



210. 



