728 
INDEX, 
Polydactylism and Syndactylism in Mam- 
mals, 411 
— in Swine, 41 1 
Polyembryony in Opuntia, 444 
Polymorphic Bacillus from a case of Cal- 
culous Nephritis, 340 
Polymorphism of the Branches of an Inflor- 
escence, 209 
Polypide in Marine Ectoprocta, Origin, G32 
Polzeniusz, F., Production of Alcohol in 
Respiration, 104 
Pomese, Wood of, 641 
Pontederiacese, Etnbryogeny, 556 
Pontoscolex, Supposed Auditory Cells, 
304 
Porifera. See Contents, xix 
Porphyrodiscus, a new Genus of Floridese, 
107 
Porter, J. F., Protozoan Parasites of Ter- 
mites, 89 
Porus Genitalis in Myxinidse, 413 
Positive or Negative Character of Mineral 
Plates, Some Methods of Determining, 
in Converging Polarised Light with the 
Petrographies 1 Microscope, 604 
Post-embryonic Development in Ants, 625 
Post-larval Fierasfer, 287 
Potamogeton, Embryology, 323 
Potamoplankton, 189 
Potebnia, A., Exobasidium Vitis, 658 
Potonie, H., Leaf and Stem, 442 
Potts, E., American Fresh- water Jelly-fish, 
201 
Poulsen, V. A., Extra-Floral Nectaries, 
441 
Preda, A., Embryo-sac of Hybrid Narcissi, 
323 
Prenant, A,, Organ in Embryo Reptiles 
like Hypochorda, 518 
Preparing Objects. See Contents, xxxiii 
Prescott, S. C., Bacteriology of Sour Corn, 
463 
Preservative Fluids. See Contents, xxxv 
President, The, 253, 254, 384, 386, 387, 
392, 393, 494, 496, 497, 689, 690, 694 
President’s Annual Address, 146-9 
Pretzl, A. D., Monochromatic Light for 
Photomicrography, 127 
Priest, B. W., 496 
Piistina, New Species, 630 
Pritzel, E., Embryo and Endosperm in 
Parietales, 322 
Proales Wernecki , Male, 83 
Proboscis of Glyceridae, 541 
Prodigiosin as Staining Reagent for Bo- 
tanical Specimens, 602 
Production of Gas by Bacteria, Simple 
Method of Demonstrating, 487 
Pronephros and Mesonephros, Develop- 
ment of, in Myxine, 54 
— of Lamprey, 182 
Propagating Roots in Ipomrea, 320 
Prorhynchid Turbellarian, New, 198 
Prosobranchs, Parasitic, 297 
— Structure of, 190 
Protective Resemblance, Remarkable Case 
of, 194 
Proteids, Formation of, by Leaves, 103 
Protein Crystalloids in Nuclei of Amcebo- 
cytes, 2U0 
Proteolytic Enzymes of Nepenthes, 207 
of Yeast Extract, 552 
Protist, New Freshwater, 87 
Protococcoideae, New Genera, 334 
Protophyta. See Contents, xxix 
Protoplasm and Active Albumen, 437 
— of Plants. See Contents, xxi 
— Reaction to Thermal Irritation, 551 
— Sac, 318 
— Spinnings, Method for the Preservation 
of, 491 
— Streaming of, 636 
— Threads, Detection in Cell-wall, 240, 
598 
Protoplasmic Membrane, and Plasmolysis, 
637 
Protozoa, Argentine, 203 
— Modifications in, 435 
— Notes on, 87 
— of Pontine Marshes, 204 
— of the Balaton Lake, 435 
— Pathogenic, of Foot-and-Mouth Disease, 
315 
— Presence of, in the Blood and Organs of 
Leukhaemic Persons, 315 
— Text-Book of the, 203 
— Two New, 203 
— . See Contents, xx 
Protozoan Parasites of Termites, 89 
Prowazek, S., Coloration of Living Proto- 
zoa, 87 
— Studies on Amoebae, 203 
Pruvot, G., Marine Fauna of Brittany and 
the Gulf of Lyous, 528 
Przesmycki, A. M., Intra-Vitam Stainimr, 
133 
Pseiidocommis Vitis as a Cause of Disease 
in Plants, 224 
Pseudo-Diphtheria Bacillus, Sporogenous, 
667 
Pseudo-Lupus Vulgaris caused by a Blas- 
tomyces, 573 
Pseudo-Tetanus Bacillus, 342 
Pseudo-tuberculous Serum, Action of, on 
the Bacillus of Pseudo-Tuberculosi.-, 
226 
Psyche helix , 193 
Pteridiospora, 330 
Pterodiuae, Some little-known, 427 
Puccinia Lojkajana , 110 
Pugnat, Charles- A me'dee, Spinal Ganglion- 
Cells of Reptiles, 64 
Puliciphora lucifera, 535, 627 
Puriewitsch, K., Emptying the Contents 
of Reserve-Receptacles, 218 
Purification of Sewage by Bacteria, 117 
