INDEX. 
957 
Plants, Revivification of Desiccated, 
640. 
, Silica in, 499. 
, Sources of Nitrogen in Leguminous, 
512. 
, Staining-reactions of Constituents of 
Nucleus, and of Sexual Cells of, 819. 
, Vitality of Annual, 67, 641. 
Plasmatic Vessel in Taenia, Sommer’s, 
794. 
Plasmodium Malarise, Demonstrating, 
289. 
Plasmogenous Vacuoles in Nucleole of 
Endosperm, 496. 
Plastids, 224. 
Plate, L., Zoological Position of Soleno- 
coneha, 465. 
Plateau, F., Protective Resemblance in 
Animal Kingdom, 349. 
Platyhelminthes. See Contents, xvii. 
Plaut, H. C-, Keeping the Inoculation 
Wire, 887. 
Plessis, G. du, Eyeless Species of Oerste- 
dia, 209. 
, Tetrastemma lacustris[e], 483. 
Pleurophyllidia Loveni, 26. 
Pleurostomella alternant, 758. 
obtusa, 757. 
Pleurotsenium maximum v. occidentale 
var. n., 719. 
Plowright, C. B., Infection by Uredinese, 
835. 
Plurilocular Zoosporanges of Asperococcus 
and Myriotrichia, 76. 
Plymouth, Occurrence of Hancoclria, 26. 
Siphonophore, 491. 
Pneumococcus observed during Influenza 
Epidemic at Charkow, 535. 
Pocock, R. I., Liphistius and the Classifi- 
cation of Spiders, 782. 
Podura-scales, Photomicrography of, 167, 
306, 425, 905, 908. 
Podwyssozki, W., Parasitism in Carcinoma, 
629. 
Pcecilogony, 592. 
Pohl, F., Preparing Ammoniated Gelatin 
and Cultivating Bog-water Bacilli, 
280. 
Poinsettia , Nectar, 642. 
Poirault, G., Development of Tissues in 
Vascular Cryptogams, 75. 
, Petiole of Osmundacese, 237. 
, Retarded Germination of iEcidio- 
spores, 522. 
, Salts in Angiopteris evecta , 826. 
, Structure of Ophioglossum, 518. 
Poisoning, Fish, 87. 
Poisons, Action of, on Germination of 
Seeds of Plants which produce them, 
69. 
Poland, Invertebrate Fauna, 194. 
Polarization Microscope in Histological 
Investigations, 544. 
Polarization Microscope, Dioptric Con- 
ditions for Measurement of Optic Axial 
Angles by Means of, 683. 
Photometer, 548. 
Polarizing Eye-piece, Investigation of Ac- 
tion of Nicol’s, 428. 
Pollen, Diastase in, 224. 
grains, Staining Cell-nucleus of, 
899. 
tube of Gymnosperms, 231. 
Pollination, Evolution in Methods of, 
509. 
of Aristolochia, 588. 
Armeria maritima , 66. 
Autumn-flowering Plants, 388. 
Calla paludris , 820. 
Dracunculus, 509. 
Insular Floras, 66. 
Nigella, 510. 
Pyrenrean Flowers, 509. 
Self-, in Apocynacese, 638. 
Polychseta of East Spitzbergen, 610. 
Polyembryony in Clusiacese, 65. 
Polygonacese, Dissemination of, 639. 
Polygonum, Cleistogamous Flowers, 232, 
508. 
Polymorphic Hypocreacese, New, 523. 
Polyporus, Conidiiferous, 654. 
Polyps, Budding in some Hydroid, 801. 
, Preparation of Budding Hydroid, 
891. 
Polyspermy in Selachian Ova, 459. 
Polystely, Origin in Dicotyledons, 227. 
Polyzoa. See Bryozoa, Contents, xii. 
Pommerenke, — ., Comparative Structure 
of Woods, 812. 
Pontaster tenuispinis, Variations of, 797. 
Poplar, Parasitic Fungus on, 522. 
PopofF, M., Anaerobic Bacillus of Panic 
Fermentation, 251. 
Porcelain, Ink for Writing on, 552. 
Porcellio scaber , Development, 364. 
Porifera. See Contents, xx. 
Porlieria , Movements of Leaves, 514. 
Potato, Development of Buds in, 640. 
Disease and its Cause, 251. 
, Formation of Crystalloids in Branches 
of, 224. 
, Respiration of, 824. 
Potentilla , Fastigiate Hairs of, 819. 
Potter, M. C., Protection of Buds in the 
Tropics, 62. 
Poulsen, V. A., Anatomy of Eriocaulacese, 
502. 
PrantFs Natural Families of Plants, 
238. 
Prasiola , New, 77. 
Pregl, F., Carbol-methylin-blue Method, 
566. 
Preparing Objects. See Contents, xli. 
Preservative Fluids. See Contents, xliii. 
Preserving Fluids, 897. 
President’s Address, 175, 299. 
