[NDEX. 



795 



Phagocytosis in vitro, 487 



— of Malarial Parasite, 390, 415 

 Phase-Differences amongst Spectra of 



Gratings, Influence on their Images, 532 

 Philip, R. H., Yorkshire Diatoms, 340, 695 

 Philonotis, European Species, 572 



— Variability, 190 



Phoronis, Affinities of, and Norwegian 

 Actinotrocha, 675 



— Oscillating Circulation, 32 

 Phosphorescent Collembola, 24 



— Organ in Cephalopods, 547 

 Photobacterium, New, 359 

 Photogenic Marine Animals, 288 



— Organs in the Eye of Cuttlefish, 169 

 Photographs of Diatoms taken with Ultra- 

 violet Light, 117 



— of Objects under Microscope, Stereo- 



scopic, 746 

 Photography, Direct, of Colours, Princi- 

 ples on which it Depends ; Direct 

 Colour-Photography Depending on 

 Prismatic Dispersiou, 720 



— Interferential, Variation of Incidence, 



Polarised Light, 604 



— of Diatoms, 1 56 



— of the Absorption Rays of the Colouring 



Matters of Blood, 605 

 Photometer, Aitchison, 99 



— Simple, 719 



Photomicrographic Camera, Portable, 99 

 Photomicrographs by Leon Foucault, 



Donation of, by A. Nachet, 122 



— of Diatoms and Podura Scales, by 



T. A. O'Donohoe, 123 



— taken by Dr. KShler, with the Zeiss 



Ultra-Violet Light Apparatus, 391 

 Photomicrography, Stain, 242 



— See Contents, xxxvi 

 Phototropism, Anhydrobiosis and Parthe- 

 nogenesis, 428 



— of Larval Lobsters, 441 

 Phragmidium, Genus, 75 

 Pbycological Notes of the late Isaac 



Holden, 63 



— Studies, 194 

 Phycomycetes, Marine, 198 

 Phyllactinia corylea, Variation, 344 

 Phyllirhoid, New, 298 



Phyllopods, Phagocytosis and Excretion, 



307 

 Phylogeny and Segmentation of Arthro- 

 pods, 664 



— of Crustacean Limb, 306 

 Physa fontinalis, Embryology, 170 

 Physiology of Seed Plants. See Contents, 



xxiii 

 Phytoplankton of Lake Thau, 196 



— of Temperate Seas, 581 



— of the Antarctic Ocean, 196 

 Piabuca. Charaeinoid Genus, Dentition, 292 

 Picea excelsa, Pollen-grain, 453 



Pierce, G. J., Irritability in Algae, 43 



Pieri, G., Cutaneous Infection with An- 

 kylostomum, 29 



— Notes on Ankylostomum, 312 

 Pieszczek, A., Variability of CobasMyrmi- 



done, 21 

 Pietsehmann, V., Axial Organ and Ventral 



Blood Spaces in Asterids, 32 

 Pigment-producing Bacteria, Two New, 



92 

 Piguet, E., Rythonomus lemani, 177 

 Pine-wood, Cretaceous, Structure, <!85 

 Pineles, F., Function of Parathyroids, 167 

 Pintner, T., Cestode Studies, 31 

 Piorkowski, — ., Differentiation of Bacillus 



typhosus and Bacillus fsecalis alcaligenes, 



355 

 Pipe-fish, Breeding Habits, 540 

 Piroplasma canis, 184 



— Genus, 683 



— in Monkey, 184 



— muris. Staining, 623 



Pizon, A., Alleged Ovulase of Spermatozoa, 

 283 



— Development of Diplosoma spongiforme, 



433 



of Diplosonudae, 296 



Placenta, Ferments, 284 



— of Tragulus, 540 



— Trophoblast, 651 

 Placentation in TTngulates, 283 

 Plagiochila, New, from Ireland, 568 

 Plague, Disease of Guinea-pigs that re- 

 sembles. 710 



— Microbe, Bi-polar Staining:, 710 

 Plaice and Sea-Urchin, Effect of Acids 



and Alkalis on the Eggs, 421 

 Planarians, Effect of Starving, 30 



— Migrations in Mountain Streams, 30 



— Terrestrial, 30 



Plankton and Benthos, Baltic, 581 



— from the Schonenbodensee, 196 



— Icelandic, 696 



— Marine, Influence of Vertical Currents, 



545 



— Migration in Lakes, 546 



— North American, 580 



— of Danish and Scottish Lakes, 195 



— of Lake Worth in Carinthia, 581 



— of Some Irish Lakes, 470 



Plant Diseases, 76, 204, 348, 478, 587, 703 

 in Britain, 77 



— Histology. Methods, 113 



— Host-. Influence of Parasites on the 



Biology, 475 



— Pathology, 79 



— Rusts, Origin and Spread, 74 

 Plant-cell : Studies, 41 



Plant-cells Ultrurnicroscopical Examina- 

 tion, 60S 

 Plants, Action of Sulphur-dioxide on, 456 



— Allied, Investigations on the Anatomy, 



559 



— Behaviour towards Aluminium, 457 



