INDEX. 



767 



Pollen of Zostera, Development, 449 

 Pollicard, A., Lympho-myeloid Connective 



Stroma in Testes of Young Rays, 422 

 Pollination, Influence on the Development 



of the Pericarp, 321 

 Polychset Proboscis, Sense-Organs, 647 

 PolycliiBta Embryos, Fixation, 373 



— Respiration, 647 



Polychrets, Sensory Cells in Proboscis, 49 



— Seasonal Histolysis, 48 

 Polychroiam of Flowers, 64 

 Polychrome Methylen - Blue, Simplified 



Method of Staining, 717 



Polyem'oryony in Gingko, 661 



Polymorphism of Bacillus radicicola, 225 



Polyplacopliora, Fossil, 177 



Poli/stomum integerrimum, Early Stages in 

 Development, 51 



Polythermostats, 496 



Polytoma, Structure and Division, 460 



Polytrichum, Leaf-movements, 209 



Porifera. See Contents, six 



Porsilcl, M. P., Riella cultivated from 

 Dried Mud, 674 



Portheim, L. R. v., Necessity of Lime for 

 Plants, 203 



Potable Water, Bacteriological Examina- 

 tion of, 91 



Potato, Bacterial Disease, 223 



— Tubers, Germination, 452 



Potter, — ., Black Dry-rot in Swedes, 61 >1 

 Potter, M. C, Canker of Oak, 338 



— Parasitism of Pseudomonas destructans, 



597 

 Powell, T., Semi-apochromatic Objective 



of T Vin. Focus, 3sij 

 Planter, V., Substitute for Cover-slips, 



115 

 Predisposition and Immunity in Plants, 



473 

 Preisz, H,, Practical Filtering Apparatus, 



260 

 Prenant. — ., Branchial Clefts in Lizard 



and Slow-worm, 634 

 Prenaut, A., Branchial Clefts in Ophidia, 



539 

 Preparing Objects. See Contents, xxxvii 

 Preservative Fluids. See Contexts, xxxviii 

 Preserving Zoological Objects, New Fluid 



Medium, 258 

 President, The, 119, 122, 3S4, 722. 725 

 President's Address : Life and Work of 



Nehemiah Grew, 129 

 Pressure and Tension, Influence on Direc- 

 tion of Cell-wall, 322 



— Mutual, Theory of the Shifting of 



Lateral Organs, 322 

 Preston, C. E., Peculiar Stages of Foliage 



in the Genus Acacia, 658 

 Priapulus, Geographical Distribution. 186 

 Prillieux. E., Dematophora in Fruit, 680 

 Prism, Observing, 266 

 for Photomicrography, 616 



Progeny of a Tailless Cat, 292 

 Projection Apparatus, Solar, and its Ad- 

 justment, 615 



— Microscope, Moll's Apparatus for Ad- 



justment of, 362 



— Microscopes, using Electric Arc or Oxy- 



hydrogen Light, 702 



— Oculars, Tape Measure for Adjustment, 



248 

 Proteid Formation in Plauts, 457 

 Proteids, Formation, 74 



— Transformation during Germination, 



456 

 Proteolysis and Tryptophane. 325 

 Proteolytic Power of Bacteria, SS 

 Prothalliof Ophioglossum and Helmintho- 



stachys, 327 

 Prothallia, Male, and Pollen from Coa 



Measures, 671 

 Prothallium of Phylloglossum, 20S 

 Prothallus of Ophioglossum, Helmintho- 



stachys. and Psilotum, 77 

 Protists, Phylogeny, 57 

 Protoplasm, Artificial, 190 



— Continuity in Fungi, 687 



— Fibrillar Structure, 194 



— Permeability, 442 



Protoplasmic Continuity in Cryptogams, 

 314 



— Streaming in Plants, 314 

 Prototracheata. See Contents, xv 

 Protozoa, Observations on, 563 



— of the Volga-plaukton, 313 

 — . See Contents, xix 



-r- Silico- Flagellate, 57 

 Protozoon Parasite in Plaice, 193 

 Protz, A., New Hydrachnids, 183 

 Prowasek, S., Bladders of Utricularia, 197 

 Prowazek, S., Structure and Division of 

 Polytoma. 460 



— Tetrads in Spermatogenesis, 162 

 Pruntt, A., Black Rot, 596 



Prunet, M. A.. Black Rot of Vine, 469 

 Pruvot, G., Classification of Neomenians, 

 541) 



— Stolonial Growth in Syllidse, 307 

 Prymak, T., Structure and Function of 



Thymus in Teleosteans, 636 

 Przesmycki, A. M., Parasites of Rotifers, 



50o 

 Przibram, H., Observations on Homarus 



europseus, 185 

 Pseudo-chromosomes in Ova of Birds, 632 

 Pseudodiphtheria and Diphtheria Bacilli, 

 lndol-like Reaction given by Cultures 

 of, 93 



— Bacilli, 226 



" Pseudogamy " in Dentalium Eutalis, 299 

 Pseudomonas destructans, Parasitism, 597 

 Pseudoscorpionidaa, Breathing Organs, 184 

 Pseudothyroid of Frog, 539 

 Pseudo-tuberculosis (Streptobacillary) of 

 Grey Rat, 47: » 



