956 
INDEX. 
Phosphorescent Bacterium, G60. 
Phosphoric Acid, Influence on Formation 
of Chlorophyll, 235. 
Photographic Plates, Action of Colours of 
Flowers on, 73. 
Representation of Movements of 
Plants, 514. 
Photographing Bacteria, 551. 
Photography, Use in Natural Science, 
677. 
Photometer, Polarization-, 548. 
Photometric Movement of Plants, 513. 
Photomicrography. See Contents, 
xxxviii. 
Phycochromacese, Cell-contents, 86. 
, Structure of, 837. 
Phycomycetes, Massee’s, 522. 
Phyllodromia germanica, Embryonic Deve- 
lopment of, 200. 
Phyllosiphon , New Species of, 830. 
Phylloxera , Anatomy of, 781. 
Phylogeny of Crustacea, 474. 
of Fungi, 241. 
Physicists, Abbe Measuring Apparatus for, 
876. 
Physiological Researches on Secretions of 
Microbes, 87. 
Physiology of Invertebrata, 463. 
of Mosses, 518. 
of Nervous System of Echinoderms, 
214. 
of Phanerogamia. See Contents, 
xxii. 
, The Microscope as an Aid to, 
881 
Phytoptid, New, 360. 
Pianese, — ., New Method of Double- 
Staining, 292. 
Piccone, A., Mimetism between an Animal 
and an Alga, 463. 
Pictet, C., Spermatogenesis of some Medi- 
terranean Invertebrates, 190. 
, Study of Spermatogenesis, 285. 
Pieris brassicse, Green Pigments in Wings 
of Chrysalids of, 778. 
Piersig, R., Hydrachnidae, 473. 
Pietruszynski, J., Invertebrate Fauna of 
Poland, 194. 
Piffard, H, G., Camera Obscura v. Camera 
Lucida, 422. 
, Drawing Photomicrographic Objects, 
874. 
, Photomicrography, 868, 906. 
Pigment-Bacterium, 407. 
, Fat-, Production by Bacteria, 662. 
in Bufo, Origin, 764. 
, Malachite-green an Extracting, 
708. 
of Bacillus pyoeyaneus, 530. 
Pigments, Green, in Wings of Chrysalids 
of Pieris brassiest^ 778. 
of Fungi, 830. 
, Scale-, of Lepidoptera, 778, 
Pilsbry, II. A., Anatomy of some American 
Molluscs, 595. 
, Anatomy of West Indian Helices, 
465. 
Pines, Primary Structure and Affinities of, 
61. 
Pinguicula, Hairs on Corolla, 503. 
Pintner, T., Cercaria Clausii, 619. 
Pinus, Two Endosperms in Ovule of, 
820. 
Pipette, Graduated Capillary, for measur- 
ing very small quantities of fluid, 152. 
Pirotta, R., Puccinia, 526. 
Pitchers on Cabbage-leaf, 64. 
Pizon, A., Development of Yibratile Or- 
gan of Compound Ascidians, 354. 
Placenta, Infection of Foetus through, 
91. 
Placopsilina Cenomana, 324. 
vesicularis, 325. 
Plague. Mouse, Bacillus typlii murium and 
the, 852. 
Planaria alpina, 209. 
Planarians, Australian Land, Ciliated 
Pits in, 40. 
, Land, 485. 
, , from Lord Howe Island, 485. 
, New Land, 41. 
, "Victorian Land, 209. 
Plants, Absorption of Sodium Chloride by, 
516. 
, Action of Anilin on Green Leaves 
of, 810. 
, Adaptation to a rainy Climate, 62. 
and Ants, 358. 
, Assimilation by Parasitic, containing 
Chlorophyll, 233. 
, of Free Nitrogen, 511, 822. 
■ , Autumn and Spring Flowering, 
389, 821. 
— — , Chlorescence of, 234. 
, Conducting Tissues of, 811. 
, Direct Absorption of Ammoniacal 
Salts, 391. 
, Electrical Currents in, 825. 
, Evolution of Oxygen at low tempe- 
ratures, 70. 
, Fixation of Free Nitrogen by, 234. 
, Grafting on underground parts of, 
67. 
, Influence of Traction on Firmness 
of, 502. 
, Intramolecular Respiration of, 824. 
, Iron in, 632. 
, Micro-organisms and Insectivorous, 
642. 
, Oil-decomposing Ferment in, 225. 
, Pectic Substances in, 809. 
, Photographic Representation of 
Movements, 514. 
— — , Photometric Movements of, 513. 
, Pollination of Autumn-flowering, 
388 . 
