1108 



INDEX. 



PontederiftceiB, Apical meristem of the 

 roots of, 248. 



Poiitia brassiere, Doercase of Weight in 

 Winter Pupa) of, 572. 



' Porcupine ' Pennatulida, 745. 



Porifeia. See Contents, xviii. 



Portihinski, — ., Comparative Biology of 

 Necrophagous and Coprophngous Dip- 

 terous Larvje, 407. 



Post-embryouic Development of Julu8,213. 



Postil Microscopical Society, 503. 



Potamogeton, Colourless Oil-plastids in, 

 984. 



Potassium Hydrate, Permanent Prepara- 

 tions of Tissues treated with, 147. 



Potato, Apples, and Water for cultivation 

 purposes, Sterilization of, 310. 



, Cultivation of Bacillus Tuberculosis 



on, 1038. 



Cultivations, 142, 143, 310, 311, 827. 



Fungus, 274. 



, Respiration of, 85. 



Potato-disease, New, 471. 



Potter, M. C, Alga epiphytic on a Tor- 

 toise, 268. 



Potts, E., Collecting, Growing, and Ex- 

 amining Fresh-water Sponges, 305. 



, Fresh-water Sponges, 63. 



Poulton, E. B., Learning to see with the 

 Microscope, 495. 



, Secretion of Pure Aqueous Formic 



Acid by Lepidopterous Larvae for the 

 Purposes of Defence, 405. 



Power and Harris, Manual for the Physio- 

 logical Laboratory, 166. 



Prael, E., Protecting-wood and Duramen, 

 248, 761. 



Prenant, A., Preparing and Staining 

 Mammalian Testicle, 844. 



——, Spermatogenesis of Gastropods, 932. 



, of Reptiles, 924, 



Preservation of Parts and Organs of Ani- 

 mals, 658. 



President's Address, 177. 



Prickle-poies of Victoria regia, 81. 



Priest, B. W., Remarkable Spicules from 

 Oaniaru Deposit, 907. 



Prillieux, E., Grape-disease — Como- 



thyrium diplodiella, 98. 

 Primitive Insects, 29. 



Streak and Medullary Canal, Relation 



of, 15. 

 Pringsheim, N., Deposition of Calcareous 

 Incrustations on Fresh-water Plants, 

 773. 

 Prisms, Tri-ocular, Quadri-ocular, &c., 



796. 

 Pritchard's Microscope with " Continen- 

 tal " Fine-adjustment, 1022. 

 Problematical Organs of Invertebrata, 



714. 

 Procarp and Cystocarp of Gracilaria, 



622. 

 Propagula of Pinguicula, 764. 

 Prosobranchs, Nervous System of, 21. 



Prostate Glands, So-called, of Oligochasla, 



221. 

 Protecting-wood and Duramen, 248, 7G1. 

 Protein-granules, &c.. Staining, 675. 

 Prothallium of Kquisctum, 262. 

 Protoplasm, Membrane, and Nucleus of 

 Pliint-cells, Properties and Changes of, 

 980. 

 Protista, Biological Studies on, 755. 

 Protnuema of Schistostega osmundacoa, 



774. 

 Protophyta. See Contents, xxxvi. 

 Protoplasm, Action of basic substances on 



living, 758. 

 , Living, Transpiration as a Function 



of, 456. 



of Certain Cells, Contractility of, 457. 



, Power of Contractility 



exhibited bv, 614. 



, Permeability of, 601. 



, Physiological Oxidation in, 454. 



, Reticulated, in the Interstitial Cells 



of the Ovary, 311. 

 , Vesicular Elements of, in Protozoa, 



748. 

 Protoplasmic Movement, Influence of 



Light upon, 242. 

 Prototracheata. See Contents, xiii. 

 Prutotremella, 1007. 

 Protozoa. See Contents, xviii. 

 Prouho, H., Researches on Dorocidaris 



papillata and other Mediterranean 



Echinids, 430. 

 Pruvut, G., and H. de Lacaze-Duthiers, 



Larval Anal Eye in Opisthobranch 



Gastropods, 19. 

 Prazmowski, A., Spore-formation in Bac- 

 teria, 787. 

 Pseudoehlorophyll corpuscles in the vas- 

 cular system of Lanieilibninclis, 565. 

 Psorospeimium Haeekeli, 240, 598. 

 Pteropoda. See Contents, x. 

 Pteropods, Lamellibranchs and Gastropods, 



Ingestion of Water in, 199. 

 Ptcrotrachea, Sucker on Fin of, 205. 

 Puccinia Graminis, Structure and Life- 



histnry of, 1007 



, New, 782. 



Pulfrich, C, A new refractometer, specially 



intended for the use of chemists, 495. 

 Pulmonate MoUusca, Development of 



Heart of, 204. 

 Pupse and Surroundings, Colour-relation 



between, 727. 

 Purification of Tolu Balsam for Micro- 

 scopical Purposes, 681. 

 Puteren, D. v.. On the preparation of solid 



nutrient media for microbes from milk, 



658. 

 Pyrenomycetes, New Genus of Sphseri- 



aceous, 630. 

 Pyrenophora and Clathrospora, 631. 

 Pyridin in Histological Technique, 1054. 

 Pythium, New, 98. 



