INDEX. 



1153 



Osmic Acid and Merkel's Fluid for 

 Pelagic Fish-eggs, &c, 531. 



Preparations, Nuclear Stain 



in, 713. 



, Treatment of Sections with, 



169. 



Ost, J., Efficiency of the Micrometer- 

 screw, 538. 



Ostroournoff, A., Development of Cyclo- 

 stomatous Marine Bryozoa, 588. 



, Metamorphosis of Fresh- water 



Polyzoa, 960. 



, Morphology of Polyzoa, 54. 



Oudemans, A. C, Affinities, Origin, 

 and Classification of Arthropoda, 

 589. 



, C. A. J. A., Endogenous Spore- 

 formation in the Hyphomycetes, 488. 



and C. A. Pekelharig, Saccharo- 



myces capillitii. 492. 



Ouderdonk, C, 549. 



, Motion of Diatoms, 111. 



Outerbridge, A. E., and H. T. Bead, 

 Fine Platinum Wire and Thin Gold 

 Leaves, 336. 



Ova, Fish, Yolk-globules in the intra- 

 capsular fluid of, 211. 



of Callionymus lyra, 46. 



of Teleostean Fishes, Oleaginous 



Spheres in, 937. 



, Structures resembling, 47. 



, Vitality of Silkworm, 428. 



Ovaries and Oviducts of Eudrilus, 613. 



, Insect, Morphology of, 229. 



of Insects, Origin of Cellular 



Elements of, 782. 



, Preparing Mammalian, for Ex- 

 amination of Graafian Follicles, 

 156. 



Ovary, Insect, Origin of the Elements 

 in, 5S. 



of Echidna, 210. 



of Insects, 424. 



Ovigerous Sheaths of Insects, Histo- 

 genesis in, 422- 



Oviposition in Phyllomedusa, 766. 



Ovum, Fertilized, and Formation of 

 Layers in Peripatus, 239. 



, Frog, Influence of Gravity on, 



939. 



, Maturation of the Arthropod, 



961. 



of Clepsine and Gnathobdellidaa, 



609. 



of Osmerus eperlanus, Mode of 



attachment of, 942. 



Ovum-cells and Antherozoids, 98. 



Owsiannikow, P., Eggs of Bony Fishes, 

 402. 



, New form of Fresh-water Coelen- 



terate, 803. 



Oxalic Acid in Plants, 90. 



Oxidation and Reduction under the 



Influence of Microscopic Organisms 



in the Soil, 118. 

 Oxygen, Elimination of, from Plants, 



105. 

 , Evolution of, from Plants in the 



Microspectrum, S25. 

 , Influence of, at High Pressure on 



the Disengagement of Carbonic 



Anhydride by Germinating Plants, 



475. 

 Oysters, Green, 52. 



, Resting-position of, 52, 415. 



, Sponge destructive of, 458. 



Ozone, Exhalation of, by Flowering 



Plants, 2S5. 



P. 



P., J. W., 182. 



, W. G., The Huyghenian Eye- 

 piece, 529. 



Pachinger, A., Notes on Sporozoa, 

 1006. 



Packard, A. S., Moulting of the Lob- 

 ster, 242. 



, Nature and Origin of the Spiral 



Thread in Tracheae, 789. 



, Structure of the Brain of Sessile- 

 eyed Crustacea, 69. 



Padina, " Prothallus " of, 290. 



Palseocrinoidea, Revision of, 255, 

 997. 



Palaeozoic Insects, 970. 



Palliet, A., Oesophageal Glands of 

 Octopus, 951. 



Palm-leaves, Development of, 94. 



Palmella, Species of Chromulina as 

 Stages of, 633. 



Palmeri and Comes, Fermentation in 

 the Living Sugar-cane, 105. 



Palps of Mandibulate Insects, 595. 



Pammel, L. H., Testa of Leguminous 

 Seeds, 649. 



Pancreatic Cells, Modification of, 

 during active secretion, 535. 



Papilionacese, Tubercles on the Roots 

 of, 1011. 



Paraffin, Commercial, Purifying and 

 Hardening, 344. 



Parainseciuin, Conjugation of, 1002. 



Paraphyses of Mosses, 657. 



Parasite, New, ou Empetrum nigrum 

 1029. 



, on lulus, 237. 



Parasitic, Crustacea, on Arctic Tuni- 

 cata, 440. 



Fungi, New, 490. 



, , on Corn, 835. 



, Vitality of Spores of, 663. 



Fungus, New, 298. 



, , on the Olive, 297. 



