1152 



INDEX. 



Nusbaum, M., Spontaneous and Arti- 

 ficial Division, 264. 



Nutmeg, Seed and Aril of, 277. 



Nutritive Media for Bacteria, Solid, 

 To."). 



Nymphseacese, Fibro-vascular Bundles 

 and Secreting Apparatus of, 821. 



O. 



Oat, Development of the Stomata of, 95. 



Obersteiner's (II.) Section-finder, 1093. 



Object-carrier, Rotary, 133. 



Objective, Beeldsnyder's Acbroujatic, 

 L050. 



, Magnifying rower of an Inch, 



151. 



Objectives, Apochromatic, Powell's, 

 1110. 



, , Zeiss's. 849. 



, Eyes of Animals as, 526. 



for Photo-micrography, 145. 



', Immersion, 510. 



, Nachet's Microscope, with Fixed 



Revolver for, 839. 



, New, G97. 



, Powell's Apochromatic, 1110. 



, Spencer and Quekett, 1069. 



, Testing, 151. 



, The New, 316. 



, Abbe, 528. 



, Working Distance of High-power, 



1066. 



, Zeiss's Apochromatic, 849. 



Oblique v. Central Light, 322, 692. 



Obrzut, A., 907. 



Ocelli, Development of various kinds 

 of, 963. 



Octaviania lutea, 665. 



Octopus, New Zealand, Size and Ex- 

 ternal Sexual Characters of, 49. 



, Oesophageal Glands of, 951. 



Odonati, Respiratoiy System of, 970. 



Odontophore of Limnasa, 228. 



Odoriferous Apparatus of Butterflies, 

 969. 



Organs of Bed Bug, 790. 



Oesophageal Glands of Octopus, 951. 



Oesophagus of the Honey-bee, 965. 



Ognew, T., Preparation of Connective 

 Tissues, 156. 



Oidium albicans, 300. 



Oil, Cdlar-wood, for Paraffin Imbed- 

 ding, 163. 



Oil-immersion Condensers, Equalizing 

 the Thickness of Slips with, 131. 



receptacles of Hypericum and 



Ruta, 97. 



Oleaginous Spheres in the Ova of 

 Teleostean Fishes, 937. 



Oligochseta, Classification and Mor- 

 phology of, 444. 



Oligochajta, Terricolous, Dorsal Pores 



of, 244. 

 Olive, New Fungus parasitic on, 297. 

 Olive-disease, 298. 



Olivier, L., Organisms of Sulphuretted 

 Waters, 1035. 



Onchidium, Histological Structure of 

 the Dorsal Papilla of, 775. 



< tin' w lii) knows, 339. 



Oniscus murarius, Development of, 979. 



Ontogeny of Cubomedusse, 999. 



Oogenetic Studies, 764. 



Oozes, Rocks, Sands, Clays, and other 

 Granulated Substances, Preparing 

 thin Sections of Friable and Decom- 

 posed, 160. 



Opaque Mounts, Black Ground for, 358. 



or Quasi-opaque Objects, Observa- 

 tion of, in the Microscope, 857. 



Opaques, Peirce's Cell for, 545. 



Opening of Pore-capsules, Mechanism 

 for the, 472. 



Ophidonais and Slavina, 445. 



Ophiopholis, Development of, 623. 



Ophiurids, Circulatory System of, 997. 



Ophridium versatile, Zoocytium or 

 Gelatinous Matrix of, 1003. 



Opossum, Embryology of, 937. 



Optic Ganglion of some Dipterous 

 Larva?, 430. 



Organs, Further Observations on, 



424. 



Orange Teel, 181. 



Orchideae, Dorsiventral Structure of 

 the Roots of, 473. 



, Parasitic Fungus of the Roots of, 



1029. 



, Self-fertilization in, 280. 



Ord, W. M., Temperature of Growing 

 Fruits, 281. 



Orientation of Sacculiua carcini, 608. 



of Small Objects, 165. 



Orley, L., Entozoa of Sharks and Rays 

 of the Bay of Naples, 251. 



, The Rhabditida?, 792. 



Orth, J., 529. 



Orthocarpus purpurascens, Seeds of, 

 366. 



Orthotrichum, Scandinavian species of, 

 481. 



Ortleb, A. and G., 731. 



Osboru, H. L., Development of the Gill 

 in Fasciolaria, 775. 



, Metamorphosis of Limulus poly- 



phemus, 67. 



Oscarella lobularis, Metamorphoses of, 

 807. 



(O. Schmidt) var. cau-ulea, 



457. 



Oscillaria, Movements of, 116. 



Osmerus eperlanus, Mode of attach- 

 ment of the Ovum of, 942. 



