INDEX. 



769 



Phylogeny of Elephants, 55 



— of Fusus and its Allies, 644 



— of Teleostomi, 4i»5 

 Phytophthora infestans, 218 

 Phytoplankton from Brandenburg Lakes, 



88 



— Norwegian, 88 



— of Fresh Water, 336 



— of the Volga, 210 



Picard, F., Habits of Sphex, 646 

 Picrocarmin, Method of Staining Sections 



Quickly, 592 

 Picroformol for Fixation, 472 

 Pictet, A , Influence of Environment on 

 Caterpillars, 304 



— Influence of Humidity on Caterpillars, 



305 

 Pig, Development of Liver, 636 

 Pigment of Supra- Renal Capsules, 516 



— Red and Yellow, of Vanessa, 59 



— Spots in Protozoa, Significance, 536 

 Pigmentation in Mice, Heredity, 290 

 Pine, Yellow, Diseases, 224 



Pinoy, M., Development of Myxomvcetes, 



98 

 Pinus, General View of the Genus, 422 

 Piroplasma donovani, 314 

 Piroplasma of Dog, 661 

 Pisciculture, 521 

 Pizon, A., Development of Diplosomidse, 



57 

 PlagiotJiecium piliferum, 431 

 Planar ia simpfissima, 310 

 Planarian Worms, Preparing, 373 

 Planarians, Terrestrial, from North-East 



Africa, 532 

 Plankton and Diatoms from the Faeroes, 90 



— Dutch, 681 



— Marine, Schizophycese, 231 



— Method of Concentrating "without Net 



or Filter, 247 



— Net, 41 Scotia " Closing, 587 



— Nets for Gathering, 472 



— North Sea, 681 



— of Certain Alpine Lakes, 434 



— of Danish Lakes, 559 



— of Gulf of Trieste, 406 



— of Hallstatter See, 88 



— of Scottish Lakes, 175 



— of the Elbe, 211 



— of Wisconsin Lakes, 643 



— Scottish Fresh- water, 87 



— Thames, 87 



Plant Diseases, Annual Record, 226 



— Geography on a Physiological Basis, 670 



— Growth, Deficiency of Nitrogen, Phos- 



phoric Acid, ami Potassium, 74 



— Life in the Sihlthal at Einsiedeln, 78 

 Plants, Amitosis, 315 



— American, Naturalised in Spain, 200 



— belonging to Different Biologic Types, 



Relation between Light Intensity and 

 Energy of Assimilation, 195 



Plants, Cyanogenesis, 77 



— Determination of Sex, 669 



— Diseases, 445 



— Economic, Diseases, 566 



— Epiphytic, Mycorhiza, 567 



— Flowering, Classification, 427 



— Higher, and Cryptogams, Relation, 428 



— Icelandic Fodder, 671 



— Influence of External Media on Mineral 



Constituents and Organic Compo- 

 sition, 425 

 of the Nature of the Soil on the Or- 

 ganic Composition, 195 



— Insect Evolution ia Relation to, 646 



— Nematode Associated with Decay, 654 



— Occurence of Invertase, 547 



— of High Regions, Liguitication of Sub- 



terranean Organs, 317 



— Perception of the Force of Gravity, 



545 



— Philippine Rubber, 671 



— Stimulating Action of some Mineral 



Salts on Growth of Higher, 546 



— Woody, Hydathodes in Leaves, 196 

 Plasmodium of Myxomycetes, Nuclear 



Changes, 694 

 Plaxmopara cubensis in Austria, 683 

 Plates of Nutrose Agar. Preparing, 471 

 Plehn, M., Bacterium Ci/priuicida, 232 

 Pleodorina in Ceylon, 556 

 Pleuel Microtome, 247 

 Plossl of Vienna, Old Microscope, 355 

 Plotnikow, W., Moulting Processes in 



Insects, 525 

 Pcecilochsetus, Structure and Habits, 652 

 Poeket Magnirier, Swift and Son's, 108 

 Pocock, R. I., Coloration of the Quaggas, 

 175 



— Stridulation in Scorpions, 62 

 Poison-Gland and Ovary in Toad, Correla- 

 tion, 168 



— Glands and Digestive Glands, Secretory 



Phenomena, 169 

 Polara, G., New Gonad in Holothurians, 



656 

 Polariscope and Microscope Lantern, 580 

 Poljansky, I., Development of Scorpions, 



307 

 "Pollination of Buckwheat, 319 



— of Primrose, 426 



Polychseta, Digestive Apparatus, 415 



— some Woods Hole Pelagic, 184 

 Polychsete, New Deep-Sea, 653 

 Polyclad Turbellarians, Revision of Classi- 

 fication, 185 



Polygordius, New, 64 

 Polymorphism in Dolchinia, 301 



— of Algse, 86 



Polyporacese of North America, 222, 566, 



689 

 Polyporus fraxinophilus, 223 

 Polyspermy and the Culture of Spermato- 



zoids, 652 



