INDEX. 



1117 



Polypes, Regeneration of, 967. 



turned outside in, 95. 



PolypUicophora. 'Challenger,' 219. 

 Polysiphouia, Morphology of, 278. 

 Polystichum angulare var. pulcherrimum, 



Wills, Apospory in, 622. 

 Polyzoa, Killing, 67-i. 



. See Contents, xiii. 



Pommer, G., Bacillus Brassiese, 450. 

 Porceliio scabtr. Development of, 893. 

 ' Porcupine ' Expedition, Isopoda of, 236. 

 Pores in Diatom-valves, lUOO. 



in Sphagnaceae, Formation of, 624. 



of the Libritbrm Tissue, 426. 



Porifera. See Contents, xx. 



Positively geotropic Shoots of Cordyline 



australis, 778. 

 embryonal Development of Muscidse, 



743. 

 Post-embrj-onic Development of Telphusa 



lluviatilis, 392. 

 Potato, Diseased, 274. 

 , Mode of Destruction of, by Pero- 



nospora infestans, 129. 

 Potouie', H., Vascular Bundles of Zea 



Mays, 109. 

 Potter, M. C, Epiclemmydia lusitanica, a 



new species of Alga, 278. 

 Pouchet, C, 325. 



, G., Gymnodinium polyphemus, 101. 



, Peridinea, 602. 



and J. de Gueme, Protozoa as 



of Sardines, 603. 

 Poulsen, S. V., and J. C. Holm, Detection 



of " wild yeast " in low yeast, 132. 

 , V. A., Anatomical Studies on 



Mayaca, 781. 

 Poulsen's Crystals, 425. 

 Poulton, E. B., Cause and Extent of 



Colour-relation between Lepidopterous 



Pupae and surrounding surfaces, 382. 



, Colour of Pupae, 74. 



, Larva of Smerinthus and its Food- 

 plants, 226. 



, Lepidopterous Larvae, Pupae, &c., 



382, 947. 

 , Protective Value of Colour and 



MarkiuiTS in Insects, 946. 

 Power, Measurement of. 1032. 

 Powell's (T.) Microscope and Appendages, 



462. 

 Practical Zoology, 213. 

 Prehistoric Plants, 120. 

 Preserving cultivations made by Koch's 



plate method, 832. 

 President's Address, 185, 668. 

 Preyer, \V., Movements of Star-fishes, 406, 



758. 

 Priapulidae, Anatomy of, 592. 

 , Excretory and Generative Organs of, 



91. 



from Cape Horn, 241. 



Prillieux, E., Propagation of Peronospora 



viticola by means of Oospores, 789. 

 Primitive Insects, 75. 

 Prince, E. E., Significance of the Yolk in 



Osseous Fishes, 730. 



Pringsheim, N., Assumed Decomposition 

 of Carbonic Acid by Chlorophyll, 118. 



, Conditions of Assimilation, 992. 



, Decomposition of Carbonic Acid by 



Chlorophyll outside the plant, 118. 



, Engelmann's Bacterium-method, 166, 



506. 



Prism, Ahrens's Polarizing, 152. 



for Drawing, 650. 



Proceedings of the Society. See Con- 

 tents, xliv. 



" Professional Photo-Micro-Camera," Kaf- 

 ter's, 822. 



Projection Apparatus, Universal, for Mine- 

 ralogical Purposes, 459. 



Projection-Lamp for Microscopic Pur- 

 poses, Selenka's Electric, 1015. 



Projection-Microscope, Newton's Electric 

 Polarizing, 1021. 



Prolification in the Mycelium of Fungi, 

 788. 



of Caulerpa, 124. 



Propagation of Peronospora viticola by 

 means of Oospores, 789. 



Prosobranchiata, German, Keual Organs of, 

 940. 



Prosobranchiate Gastropoda, Structure of 

 Branchia of, 939. 



Prosobranchs, Nervous System in Tenio- 

 glossate, 374. 



■ Pectinibranch, Structure of False 



Gills of, 940. 



, Renal Organs of, 569. 



, Typical Nervous System of, 218. 



Protective Value of Colour and Markings 

 in Insects, 946. 



Proteids in the Seeds, Changes in, which 

 accompany Germination, 619. 



of the Seeds of Abrus precatorius, 773. 



Proteinaceous bodies in Epiphyllum, 983. 



Prothallium and Germ-plants of Lycopo- 

 dium inundatum, 621. 



Prothoracic Appendages of Lepidoptera, 

 381. 



Protonema of Moss resembling Cliroolepus, 

 623. 



of Mosses, Relationship of the Chloro- 



phyllous Protophyta to, 130. 



Protophyta. See Contents, xxxLi. 



Protoplasm, 420. 



, Chemical Reactions of, 423. 



, Destruction of the Molecular Struc- 

 ture of, 106. 



, Germinal, Continuity of, 561. 



, Living, Method for subjecting, to 



the action of diftereut liquids, 669. 



, Morphological and Chemical Com- 

 position of, 979. 



of a recently-killed animal, Fermen- 

 tation by, 731. 



of Infusoria, Reticular Structure of, 



414. 



Prototracheata. See Contents, xv. 



Protoventuria, a new genus of Pyreno- 

 mycetes, 282. 



Protozoa, New Method of Mounting, in 

 Balsam, 505. 



