824 



INDEX. 



Power, F. B., Poisonous Action and Histo- 

 logy of Stem of Derris uliginosa, 520 



Powers, J. H., Acceleration and Retarda- 

 tion of Metamorphosis in Amblystoma 

 tigrinum, 707 



Preefemur and Trochanter, 175 



Planter, V., New Methods of Paraffin 

 Imbedding, 369 



Pratt, H. S., N. American Trernatodes, 41, 

 303 



Prenant, A., Myoblasts, 595 



— Myonemes of Protozoa, 618 

 Prepotency in Polydactylous Cats, 24 

 Preputial Glands of Kabbit, 486 

 Preservation and Staining of Serial Sec- 

 tions and Paper Strips, 371 



President, The, 121, 122, 126, 127, 128,241, 



242, 243, 244, 245, 252, 376, 377, 379, 



380, 786 

 President's Address, ' Some Ideas of Life,' 



126, 142 

 Preswisch, J., Calcareous Sponges from 



the Pacific, 729 

 Projection Apparatus for Scientific Work, 

 * New, 549 



— Microscopic, Koristka's Apparatus for 



Liquid Preparations, 553 

 Prophysema hxcltelii, 617 

 Protective Eesemblance in Butterflies, 719 

 Proteid Crystals, Staining Reactions, 236 



— Formation in Moulds, 528, 534 



— New, from Maize, 49 

 Proteids, Synthesis by Plants, 513 

 Proteolytic Ferments, 625 

 Protohydra leuckharti, Division, 44 

 Protomycetes, Taphridium, A New Genus, 



331 

 Protoplasm and Enzymes, Nature, 624 



— Continuity, 47 

 Protoplasmic Streaming, 308 

 Protoplast, Relationship to Nuclear Mem- 

 brane, 506 



Protozoa, Myonemes, 61S 



— Nuclear Emissions, 305 



Prunet, A., Botrytis vulgaris on Figs, 529 

 Prunus, Prussic Acid in Opening Buds, 



516 

 Prussic Acid in Opening Buds of Prunus, 



516 

 Pseudogyny in Formica, and its Cause, 



172 

 Pseudoscope Lens, 762 

 Pseudoscorpionidse, Segments, 298 

 Psilopilum, 325 

 Pteridophyta, East Asiatic, 740 



— German, 521 



— N. American, 521, 741 

 Pterocephalus, Sexual Reproduction, 729 

 Pteropod, New, 603 



Ptychodera eryilirxa from the Red Sea, 183 

 Puccineae, Experiments, 018 

 Puccinia dispersa and its adaptive Para- 

 sitism, 649 



Puccinia, Effect of Mineral Starvation on 



the Parasitism, 210 

 Puchberger, G., Vital Staining of Blood- 

 Plates in Man with" Brillatitkresylblau," 

 773 

 Pulmonata, Aeriferous Canal in Shell, 492 

 Punnett, R. C, Neinerteans of Norway, 726 

 Pupal and Imaginal Organs, Precocious 



Development iu Caterpillars, 605 

 Purple of Dog-Whelk, 170 



— of Purpura lapillus, 290 

 Purpura lapillus, Purple of, 290 

 Putrefaction of Meat, 218 



Pyrenoids and Elseoplasts in Diatoms, 200 



Pyrocysteae, 62 



Pyroxene, Note on the Amphibole Hud- 



sonite previously called a, 777 

 Pyrrhocoris apterus, formation of Chorion, 



607 

 Python reticularis, Acid-fast Bacillus in, 



660 



Q. 



Quelle, F., Rhizoid-Initials of Marchantia, 



58 

 Queva, O, Unipolar Stele in Rootlets of 

 Trapa, 509 



R. 



Rabbit Pest in Australia, 29 



— Preputial Glands, 486 



Rabbits, Lamblia intestinal is, Fatal to, 46 

 Rabl, C, Development of External Body- 

 Form, 24 

 Rabenhorst's Kryptogamen-Flora : Fungi 



imperfecta 209, 535 

 Racovitza, E. G., Note on the Great Sea 



Serpent, 287 

 Radium Rays, Influence on Ova, 483 



on Tadpoles, 483 



Ramaley, F., Egregia Menziesii, 635 

 Rame, — ., Meckel's Diverticulum and 

 Concomitant Absence of Csecal Ap- 

 pendix, 710 

 Bamularia xquivoca, Development, 618 

 Ransom, P., Researches on Tetanus, 661 

 Rapidity and Numerical Aperture, 765 

 Rapp, R., Rennet-like Enzyme from 



Yeast, 528 

 Rat, Disease caused by Acid-fast Bacillus, 



560 

 Rats, Leprous Affection of Skin and 



Lymph-glands, 342 

 Rauther, M., Genital Apparatus of Bats, 



711 

 Ravaud, — ., French Moss Flora, 61 

 Ravenelias of the United States and 



Mexico, 530 

 Rayleigh, Lord, On the Theory of Optical 

 Images, with Special Reference to 

 the Microscope, 417 



