1000 



INDEX. 



Polyps, Hydroid, and Medusae Living 

 in Fresh Water, 748. 



Polyzoa, North Polar, 30. 



Pond-Life, Apparatus for, 835. 



Porifera. See Contents, xvii. 



Porte-loupe, Lacaze-Duthiers', 939. 



, Nachet's, 939. 



Post, Tubes for Conveying Moist Speci- 

 mens, Diatomacese, &c., by, 145. 



Poulsen's Botanical Micro-Chemistry. 

 772. 



Powell's Oil-immersion Objective of 

 1-47 N. A., 714 



Prawns and Crabs, Change of Colour 

 in, 452. 



Prefecundation in Spio, 890. 



Preservative Fluids for Botanical Pre- 

 parations, 845. 



Preserving Cover-glasses, 958. 



President's Address, 180. 



Priority of Invention, 693. 



Prism, Equilateral, and Kelner Eye- 

 jiiece, as a means of Illumination, 

 828. 



Prismatic Action of certain Microscopic 

 Objects, 707. 



Proboscis, Beetle with, like that of 

 Lepidoptera, 884. 



Proceedings of the Society. See Con- 

 tents, xxxii. 



Propagation of Sponge by Cuttings, 

 748. 



Prosopistoma punctifrons, Perfect State 

 of, 596. 



Prothallia, Hibernating, of Equisetum, 

 922. 



Prothalliform Branch, Transformation 

 of a Fertile Branch of Batracho- 

 spermum into, 503. 



Prothallium of Lycopodium, 78. 



Protoplasm and Cell-nucleus, Structure 

 of, 475. 



, Chemical Difiference between 



Living and Dead, 906. 



, Influence of the Mode of Prepa- 

 ration on the Movements of, 225. 



of ^thalium septicum, Composi- 

 tion of, 283. 



Protozoa. See Contents, xvii. 



Pseudoscojnc and Orthoscopic Effects 

 in the Binocular Microscope, Con- 

 ditions of, 203. 



Psorosperms of Fishes, 766. 



Pucciiiia Lojkajana, 777. 



Pulmonary Tissue, Intrusion of a 

 Fungus into, during Peri-pneumonia, 

 283. 



Pure Cultivation of Bacteria, Koch's 

 new Method of, 950. 



Purpurine for Staining Foetal Verte- 

 brae, 957. 



Puzzles, the Hemisphere, 326, 365. 



Pycnogonida of the ' Blake ' Expedi- 

 tion, 730. 



— — - of the ' Challenger ' Expedition, 

 886. 



Pyrosoma, Anatomy of, 593. 



, Budding of, 438. 



Q. 



Queensland Bryozoa, 439. 

 Quickly, Making sections very, 843. 



R. 



Rabbit, Fatal Form of Septicsemia in, 

 produced by the Subcutaneous Injec- 

 tion of Human Saliva, 779. 



Rabenhorst's ' Cryptogamic Flora,' 78. 



Rack-work, Diagonal, and Sjjiral 

 Pinion, 518. 



Radiation, Difference of in the same 

 Medium, 341. 



, Increase of, in Glass, Oil, &c., 



343. 



in Media of higher Refractive 



Index than Air, Abbe's Apparatus 

 for demonstrating the Increase of, 

 526. 



Radiolaria in the Italian Jasper, 68. 



Radiolarian and some Microspongida 

 from considerable depths in the 

 Atlantic Ocean, 173. 



Radula, European Species of, 923. 



Ranvier Microtome, Loewe's Modifica- 

 tion of, 840. 



Rape-disease, Pleospora Napi, 86. 



Raphides, Mounting, 849. 



Reagent for small quantities of Oxygen 

 from Living Organisms, 9G2. 



Red Blood-corpuscles, Passage of, into 

 the Lymphatic Circulation, 226. 



Colouring Matter of Chloro- 



phycese, 930. 



Pigments in Plants, Action of 



Light on the Formation of, 76. 



Vascular Fluid of Chsetopods, 



Occurrence of Corpuscles in, 738. 



Reflection from the Inside of Body- 

 tubes, 118. 



Refractive Index, High, Mounting Dia- 

 toms in Substances of, 704, 973, 978. 



higher than Air, Abbe's 



Apparatus for demonstrating the 

 Increase of Radiation in Media of, 

 526. 



Indices of Optical Glass, 949. 



Regeneration of Lost Parts in the 

 Squid, 587. 



of Spinal Cord, 17. 



Reggio, Tertiary Bryozoa, &c., from, 

 594. 



Renilla, Early Stage of, 255. 



Report of the Council, 367, 369. 



