854 
INDEX. 
Pleuromma, Lateral Eye of, 327 
, Organ of, 328 
Pleurotus olearius , Luminosity of, 513 
Plimmer, H. G., Parasitic Protozoa in Can- 
cerous Tumours, 648, 705 
Plumage, A Duck with Drake’s, 461 
Plymouth, Marine Invertebrate Fauna of, 
28 
Plankton, 27 
Sound, Nemertines of, 635 
, Turbellaria of, 635 
Pneumatic Bubble-remover, 713 
Pocock, R. I., Classification of Tracheate 
Arthropoda, 620 
, of Scorpions, 736 
■ , Habits of Living Scorpions, 625 
, Morphology and Classification of 
Araclmida, 179 
- — , Myriopoda of “ Challenger ” Expedi- 
tion, 178 
Podopsis, 473 
Podura Scale, 105 
Pogonius bifasciatus, 623 
Poirault, G., Calcium oxalate in Vascular 
Cryptogams, 661 
, Gleicheniacese, 215 
Poisons, Effect on Spores of Fungi, 664 
Polar Bodies, Demonstrating in Cholera 
Bacillus, 804 
Polarization Apparatus, Fromme’s Ar- 
rangement for Histological Purposes, 
249 
Microscope, Simple Method for De- 
termination of Sign of Double-refrac- 
tion, 698 
• , Plane of, and Direction of Vibration 
of Light in Doubly Refracting Crystals, 
256 
Polarized Light, Application to Histologi- 
cal Investigations, 692 
Pollard, E. C., Peripatus from Dominica, 
736 
Pollen, Colouring-matter of, 348 
grains of Papaveracese, 498 
• , Structure of, 61 
tube of Gymnosperms, 756 
Pollination of Plants. See Contents, xxiv 
Rohdea, 757 
Polychseta, Asymmetrical Growth in, 184 
from Deep Water off Ireland, 631 
of North Carolina, 631 
Polychsetes, Peculiarities in Segmentation 
of, 473 
Poly clads, Pelagic, 190 
Polydonia frondosa, 489 
Polynoid, New Pelagic, 330 
Polypodiacese, Development of Sporange 
in, 662 
Polyzoa. See Bryozoa, Contents, xii 
Pope, F. M., Micro-organisms in their Re- 
lations to Higher Animals, 779 
Poppy, Pistillody of, 207 
Porcelain Filters, Sterilizing Power of, 701 
“ Pore ” in Sponges, Morphological Value 
of the Term, 195 
Porifera. See Contents, xx 
Porritt, G. T., Larvae of British Butter- 
flies and Moths, 468 
Port Jackson, Phoronis from, 482 
Portugal, Pulmonata of, 312 
Potassium Hydroxide, Secretion by Di- 
cranura vinula, 176 
Potato, Growth of Comma Bacillus on, 681 
Section Cutter, Bacteriological, 267 
, Transport of Starch in, 660 
tubers, Development of, 355 
Potonie', H., Leaves of Annularia, 215 
Structure of Lepidodendron. 761 
Poulton, E. B., Colours of Lepidopterous 
Larvae, 734 
Prasiola, Propagation of, 73 
, Reproductive Organs of, 506 
Preparing Objects. See Mickoscopy, Con- 
tents, xxxix 
Preservative Fluids. See Microscopy, 
Contents, xli 
President’s Address, 137 
Preston, W. N., New Mounting Talrh , 
784 
, Practical Drying Oven, 780 
Prickles of Rosa sericea, 655 
Prillieux, E., Fungus of Intoxicating Rye, 
367 
, -parasites of Cultivated Plants, 
78 
, on Mushrooms, 74 
, Parasitic Fungi, 667 
Primrose, Pollination of, 66 
Pringle’s, A., Vertical Photomicrographic 
Apparatus, 695 
Prion turn serratum , Structure, 753 
Prisons, Existence of Viable Tubercle 
Bacilli in, 231 
Proboscis of Diptera pupipara, 35 
Projection Microscope. Salomons’, 424, 532 
Proneomenia, Structure, 313 
Prosobranchs, Nephridial Gland of, 163 
Proteacese, Floating-apparatus of Fruit, 
754 
Proteids, Crystallized Vegetable, 205 
, Transformation of, 214 
Protein-crystals, 205 
Proteosomes, 345 
Proterandry and Proterogyny, 353 
Protistological Technique, Eserin in, 558 
Protochorda, Studies on the, 165 
Protococcacese and Chytridiacese, Tran- 
sitional form between, 750 
, New Genera, 768 
Protococcoidese, Development and Classifi- 
cation of, 369 
Protophyta. See Contents, xxxi 
Protoplasm, Chemical Nature and Chroma- 
tophily, 805 
, Demonstrating Continuity, 259 
• , Recent Views on, 613 
