INDEX. 
851 
Ova, Selachian, Doubling of Chromoso- 
mata in Nucleus, 156 
• , Triton, Fertilization of Immature, 
21 
, Yolk-membrane in Echinoderm, 192 
and Intra-Ovarian Egg of Teleosteans, 
24 
Oven, Practical Drying, 780 
Overbeck, A., Pigment-bacteria, 227 
Overton, E., Reduction of Chromosomes in 
Nuclei, 495 
Ovum, Fertilization of Axolotl, 21 
Owen, the late Sir Richard, 106, 129 
Oxalis stricta. Dissemination of Seeds, 67 
Oxychloride of Ammoniacal Ruthenium, 
Staining Properties of, 565 
Oxygen, Free, Decomposition of Albumen 
in Absence of, 214 
, Interchange of Carbon Dioxide, 
between Plants and Atmosphere, 214 
Oxyrhynchi, Embryology and Morphology 
of, 627 
Oxyuris Paronai , 477 
Oysters, Food of, 461 
from N.W. Coast of United States, 
314 
, Seat of Coloration in Green, 314 
P. 
Pachyerismci, Pedal Impression of, 464 
Pacific, Holothurians from Eastern, 484 
Pacinetti, G., Staining Tubercle Bacillus 
in Tissues, 803 
Packard, A. S., Aglia tail, 176 
, Life-Histories of Ceratocampidse, 
&c,, 735 
, Life-history of Cochliopodidae, 621 
Paget’s Disease, Protozooid Appearances 
in, 563 
Pal, Weigert-, Method, Rapid Staining of 
Nervous Tissue by, 409 
Palxmonetes varians , Nephridia and Body- 
cavity of Larva of, 326 
Palaeozoic Poriferous Coral, Development 
of, 486 
Palinurus, Ganglionic Lamina of, 182 
Palm, Date, Fertilization of, 651 
Palms, Branching, 62 
, Embryo of, 349 
Pammel, L. H., Perforation of Flowers by 
Insects, 658 
Pancreas, Development of, 604 
, , in Ophidians, 724 
in Trout, Development of, 304, 461 
Pane, N., Power of B. coli communis to 
develope gas, its importance in distin- 
guishing the bacillus of typhus, 687 
Pannwitz, — ., Impervious Self-acting Self- 
regulating Stopper for Sterilizing Pur- 
poses, 551 
Pantlen, — Report on a Course of Bacteri- 
ology, 687 
Pantopoda, Soutli American, 36 
Paoletti, G., Epicalyx of Tqfieldia, 754 
Papilionaceae, Structure of Integument of 
Seed of, 62 
Papilionidae, Evolution of, 622 
, Phylogeny of, 174 
Papuan Spiders, 35 
Paraffin, Balsam-, for Cells, 567 
- — - Sections, Keeping Flat, 412 
Parasite, Endophytic, of Diatoms, 1 
, Flagellate Iufusorian as lntra-cellu- 
lar, 197 
, Fungus-, of Cochylis, 767 
, , of Scotch Fir, 222 
, , of Spirogyra, 668 
, Infusorian Skin, of Freshwater 
Fishes, 196, 340 
, New Cancer, 649 
, Peculiar, of the Goura, 181 
Parasites, Achlorophyllous Phaneroga- 
mous, Preserving, 558 
, Demonstrating Malaria, 711 
, Fungus-, of Apples and Pears, 74 
, , of Cultivated Plants, 78 
, , on Mushrooms, 74 
, Notes on, 47 
of Man, Rare, 46 
of Red Blood-corpuscles, 647 
of Typhus Fever, 523 
, Report on Animal, 162 
Parasitic Amoebae of Human Intestine, 748 
Castration of Knautia arvensis , 757 
of Lychnis and Muscari, 210 
Disease in Flounders, 811 
Fungi, 667 
, Effect on Flower, 664 
, Germination of, 508 
, Influence on Host plant, 364 
, New, 222, 508 
on Ferns, 365 
, Staining, 410 
Hexapod Larvae of Acari, Fixation of, 
325 
Phaeosporeae, 506 
Protozoa, 199 
found in Cancerous Tumours, 
200, 262, 648 
Sacs iu Body-cavity of Rotifers, 56 
Sporozoa, Meta chromatism of, 563 
Uredineae, Influence on Host-plant, 
511 
Uredineae ou Berheris , 78 
Parasitism, Extreme Case of, 471 
, Intracellular, of Cancerous Neo- 
plasms, 648 
of Cynomorium , 67 
of Pseudoscorpions, 625 
Parenchyma, Body-, of Trematodes, 637 
Parkes, L. C., Relations of Saprophytic to 
Parasitic Micro-organisms, 235 
Parona, C., Microcotyle , 192 
Parthenogenesis, 170 
in Spiders, 626 
