INDEX. 



1157 



Preserving Microscopical Preparations, 

 Giacoinini's Process for, 354. 



Plants, 180. 



President's Address, The. 193, 339. 



, Portraits of, 151, 339. 



Pressures, Influence of High, on Animal 

 Tissues, 407. 



Preuss, P., Leaf-stalk and Cushion, 

 271. 



Prevention of Bubbles, 166. 



Preyer, W., Special Physiology of the 

 Embryo, 208. 



Priapulus caudatus and Halicryptus 

 Bpinulosus, 73. 



Prillieux, E„ Fungus-parasites of the 

 Vine, 835. 



, Olive-disease, 298. 



Primavera, G., 1103. 



Primitive Streak, History of, 935. 



Prince, E. E., Development of Food- 

 Fishes, 767. 



, Oleaginous Spheres in the Ova of 



Teieostean Fishes, 937. 



Pringsheim, N., Elimination of Oxygen 

 from Plants, 105. 



, Evolution of Oxygen from Plants 



in the Microspectrum, 825. 



Prinz, W., 151. 



Prismatique, 549. 



Proboscis of Hemiptera, 63. 



Proceedings of the Society. See Con- 

 tents, vii. 



Proctor, E. A., Minute Writing, 1068. 



Professional Microscopy, 339. 



Projection, Newton's Microscopic At- 

 tachment for Lantern, 1046. 



Proliferous Shoots in Hymenomycetes, 

 487. 



Proteid Substance in Latex, 644. 



Proteinaceous Bodies in Epiphyllum, 

 89. 



Prothallia, Apogamous, of Ferns, Bud- 

 ding on, 107. 



of Ferns, Development of, 106. 



"Prothallus" of Padina, 290. 



Protophyta. See Contents, xxxi. 



Protoplasm, Continuity of, 466. 



, Currents of, 466. 



, Distribution of, in the Curved 



Parts of Plants, 87. 



, Exhibiting the Streaming of, 358. 



in Drosera, Aggregation of, 638. 



, Molybdic Acid Test for, 174. 



, Movements of, in Tissue Cells, 



266. 



, New Organ in, 86. 



, Sexual, Excretion of Masses of, 



during and before Impregnation, 

 278. 



Protoplasmic Continuity in Seaweeds, 

 288. 



Layers in Rhizopoda, 464. 



Prototracheata. See Contents, xiv. 



Protozoa. See Contents, xx. 



Prouho, H., Nervous System of Echinus 



acutus, 450. 

 , Vascular System of Dorocidaris 



papillata, 802. 

 , of Spatangus purpureus, 



625. 

 Provence, Phallusiadae of, 418. 

 Providence Microtome, 347. 

 Prudden, J. M., 366, 1103. 

 Przybytek, D. S., and A. Famintzin, 



Composition of the Ash of the Pollen 



of Pinus sylvestris, 64S. 

 Psorosperms, Pathogenic Role of 



certain, 265. 

 Psychical Development of Spiders, 



975. 

 Psyllidse, Anatomy of, 431. 

 Pteropoda, Gymnosomatous, Cephalic 



Appendages of, 53. 



, , Notes on, 228. 



Pterotrachea, Structure of, 952. 

 Puccinia malvacearum, Disappearance 



of Insects in consequence of the 



appearance of, 116. 

 Pulmonata, Development of the re- 

 productive elements in, 410. 

 , Flemming's Method of Preparing 



the Retractile Tentacles of, 179. 



, Spermatogenesis in, 50. 



Pumice-stone, and other Vesicular 



Rocks, Preparation of Sections of, 22. 

 Pygidium of the Flea as a Test Object, 



147. 

 Pyrenomycetes, Bommerella, a new 



genus of, 293. 



Richonia, a new genus of, 1028. 



Pyroxene, Rhombic, Apparatus for the 



Microscopic Detection of, 1058. 



Q. 



Queen, J. W. & Co., 697, 869. 



Acme Lamp, 1053. 



Acme No. 4 Microscope, 



1045. 



, Actinic Contrast in Photo-micro- 

 graphy, 866. 



, Grip Cement, 907. 



, Improved Whitney Section In- 

 strument, 1088. 



"Parfocal Eye-pieces," 1050. 



Quekett, Spencer Objectives and, 1069. 



Quercus prinoides, Heterophylly of, 96. 



R. 



Rabenhorst's Cryptogamic Flora of 

 Germany (Ferns), 828. 



(Fungi), 116. 



(Mosses), 108. 



