INDEX. 
463 
Pearson, W. H., Hepatic* from tlie 
Cameroons, 414 
Pease, Yinnie A., North Pacific Coast 
Species of Desmarestia, 206 
— Taxonomy and Morphology of the 
Ligulate Species of the Genus Des- 
marcstia, 422 
Pecaw ( Carya illinoensi.s'), Myriangium on, 
325 
Pediculus liominis , Nephrocytes of, 54 
Peile, H. D., Butterflies of Mesopotamia, 
281 
Pellia epiphylla, Fungus present in, 331 
Peltereau, M., Affinities of Boletus sul- 
pliureus Fr. and B. splixroeephalus 
Basla, 428 
PeJtigera ccinina, Growth and Regenera- 
tion of the Thallus of, 432 
Penard, Dr. E., Etudes sur les Infusoires 
d’eau Douce, 225 
Penfield, Wilder G., Golgi Apparatus and 
Holmgren’s Trophospongium in 
Nerve-Cells, 172 
Penicillium glaucum and War-bread, 330 
Perophora, De-differentiation in, 178 
Pertya phylicoides, Xerophytic Leaves of, 
308 
Pessin, Louis J., Epiphyllous Plants of 
Jamaica, 312 
Pestalozzia Guepini Desm., 425 
Petch, T., Entomogenous Fungi, 85 
Petersen, H. E., Mediterranean Algse, 208 
Petkov, S., Materials for Algological Flora 
of the Black Sea, 78 
Petrak, F., Mycological Notes, 88, 89 
Work of Joseph Jahn, 89 
Peyronel, B., Bleplicirospora terrestris, a 
Phycomyeete parasitic on White 
Lupin, 85 
— Oak Oidium iu Italy, 325 
— Mycorhizal Fungi, 332 
Phaeophycese of Puget Sound, 204 
— Somatic Organization of the, 204 
Pkaseolus, 410, 411 
— vulgaris and P. rnidtiflorus , Suscep- 
tibility to Rust of, 326 
Pheretima, New Type of Nephridia in, 
59 
Phyllopods, Nutrition in, 183 
Phyllitis, 206 
Phycological Contributions, 323 
Phycomyces nitens, Hydrotropic Bending 
in, 90 
Phytophthora, 85 
— infestans, 329 
on Egg-plant in the United States, 
324 
Pigeons, Eimeria in, 302 
— Inadequate Egg-shells in, 273 
Pilger, R., Algae Mildbraedianae Anno- 
bonenses, 84 
Pilosace, 327 
Pine Cone Rusts, 327 
Pinus silvestris and Picea alba, Myco- 
rliizas of, 212 
— Strobus , Septobasidium on, 334 
Pipette, Plunger, 267 
riankton around the Faeroes, 199 
— of the Irish Sea, 418 
Plant Biology, 225 
— Diseases, Biochemistry of, 333 
— Life, Coloration of Fresh-water by, 75 
— Sociology, Methodical Bases of Modern, 
91 
Plantefol, Sexuality of Basidiomycetes, 
330 
Plants, Green, Fixation of Nitrogen by, 
320 
Plasmodial Parasitic Peridinieae, Syn- 
dinial Mitosis in the, 316 
Playfair, G. I., Australian Fresh-water 
Flagellates, 192 
Plexaura, 63 
Plitt, Charles C., Lichens from Jamaica, 
214 
Plumularidae of Hirondelle and Princess 
Alice, 62 
Plumularids, Secondary Sex Characters 
in, 186 
Pogotrichum, 82 
Poisson, R., New Gregarine in Sand- 
hopper, 186 
— New Gregarines, 302 
Polarized Light, Application of, to Resolu- 
tion with the Compound Microscope, 
264 
Policard, A., and Juliana Tritchkovitch, 
Fixation of Fats by Cortex of Supra- 
renals, 278 
Pollacci, Gino, Sporotricose of Peaches, 
332 
Pollen, Counting Chromosomes in, 409 
— grains, Reserve Material in, 308 
Polycelis, Triple Pharynx in, 61 
Polypodium irioides, 72, 195 
— virginianum ai d P. vulgar e, 412 
— vulgar e as an Epiphyte, 72 
Polysiphonia fastigiata Grev., 80 
Polyspora Lini g. et sp. n., 335 
Pond- Life Exhibition, 234 
Porias, American, 210 
Porpliyra tenera Kjellm., 203, 321 
Porter, A. W., and J. J. Hedges, Distribu- 
tion of Particles in Colloidal Suspen- 
sions, 439 
Portevin, A. M., Constitution of Tungsten 
and Molybdenum Steels, 94 
— and Y. Bernard, Coalescence in Steels, 
95 
Potato, Wart Disease of, 209 
Pottier, Jacques, Development of Leaf of 
Mosses, 313 
Powers, Sidney, Gastropod Trails in Penn- 
sylvanian Sandstones in Texas, 279 
Poynter, C. W. M., Effect of Ultra-violet 
Rays on Developing Limnoeus, 179 
