7S8 
INDEX. 
Dicotyledonous Herbs and Shrubs, Medul- 
lary Rays, 470 
Dictyosphcxrium , Development, 605 
Dicyeuiida, 287 
Didemnidte, Budding, 671 
Diet el, P., Alternation of Generations in 
Uredine£e, 603 
— On Uredo Polypodii, 391 
— Ravenelia , 490 
— Teleutospores of Uredinese, 603 
Digestion of Coelentera, 350 
— Role of Acid in Protozoan, 462 
Dimorplia mutans, 463 
Dimorphism due to Parasitism, 439 
— in Japanese Butterflies, Seasonal, 444 
Dinard, Polychaeta, 682 
Dinychus perforatus, 311 
Dionsea, Insectivorous Habit of, 231 
Dioscoreaceae, Anatomy of Stem, 78 
— Bulbils, 83 
Diphtheria Bacillus, Effect of Citric Acid 
on, 728 
Isolating from Toys, 128 
Urine- Agar for Cultivating, 128 
— Immunity, 727 
- — Secondary Foci in Experimental, 610 
— Viability Period, 248 
Diplococcus pneumonias, Presence in Osteo- 
myelitis and Periostitis, 245 
Diplosomidae, Budding, 671 
Diptera, destructive of Cereals, 675 
— Parasitic on Acrididae, 560 
Dipterous Parasites of Locusts, 446 
Discopoma cassidea , 307 
— pandata , 300 
— • romana, 308 
Disinfectants, Influence of Alcohol, Gly- 
cerin, and Olive Oil on, 608 
Disinfection Experiments, Technique, 528 
Dissard, A., Properties of Bacillus pyocya- 
nogenes as affecting Nutrient Qualities 
of its Medium, 614 
Distaplia, Degeneration, 442 
— magnilarva, Metamorphosis of, 330 
Distomurn , Mono graph on, 687 
— clavigerum , 65 
— Westermanni in United States, 345 
Distribution of Lacustrine Plankton, 552 
Dithion, New Antiseptic, 281 
Ditiola , Systematic Position, 723 
Diversion, A Little, 523 
Dixey, F. A., Phylogeny of Pierinae, 443 
— Temperature Experiments on Lepido- 
ptera, 673 
Dixon, H. H., Fertilization of Pinus, 
474 
— Germination of Seeds, 477 
— Walking of some Arthropoda, 557 
Nuttall, F. R., Notes on Rotifers, 
346 
Dog’s Blood, its Bactericidal Power and 
Richness in Leucocytes, 610 
Doliolum, New, 51 
Donaldson,^ H. H., Changes caused in 
Nervous Tissue by Hardening Reagents, 
— Macrae Electric Company, New Ma- 
chine for Cutting Thin Sections of Rocks 
and Minerals, 533 
Doria, F. R., Protozoa in Endometritis, 
696 
Doridiidae, 46, 179 
Dornberger, — ., Streptococci in Healthy 
and Unhealthy Mouth, 498 
Draer, A., Action of some Sozoiodol Prepa- 
rations, and of Tribromophenol-Bismuth 
on Cholera Bacilli, 281 
Draparnaldia, Zoospores, 91 
Drasch, O., Formation of Somatopleure 
and Vessels in Chick, 544 
Dreissensia polymorpha, Circulatory Sys- 
tem, 442 
Nervous System, 328 
Dreyfus, I., Composition of Cell-wall of 
Fungi, 234 
— L., Anatomy 'of Phylloxeridae, 675 
Driesch, H., Experimental Embryology 
illustrated by Echinoderms, 347 
Drohnig, M., Root-tubers, 223 
Drossbach, G. P., Examining Water for 
Anaerobic Bacteria, 527 
Drought, Unequal Resistance of Plants to, 
85 
Druner, L., Degeneration of Cells and 
Nuclei, 326 
Duboscq, O., Poison-Glands of Chilopoda, 
676 
Dubourg, E., Presence of Mannite in Wine, 
373 
Ducamp, — Bacteriological Study of 
Drinking Water of Montpellier, 391 
— Note on Fluorescent and Liquefying 
Bacillus of Drinking Waters of Mont- 
pellier, 503 
Duclaux, E., Analogies between Fermenta- 
tion and Solar Combustion, 481 
— Microbes and Fatty Matter, 244 
— Part played by Microbes in Agricul- 
ture, 391 
— Spontaneous Purification of River 
Water, 714 
Duerden, J. E., Irish Hydroida, 208 
— New and Rare Irish Polyzoa, 185 
Dunbar, — ., Investigation of Cholera-like 
Aquatic Bacteria, 102 
Duramen and Alburnum, Comparison, 219 
— Characteristics, 218 
Durand, E. J., New Myxomycetes, 490 
Dust, Street, Examining for Tubercle Ba- 
cilli, 134 
Dyes, Anilin, Staining Tubercle Bacilli 
in Sublimate Solutions c f , 276 
Dytiscus , Spermatozoa, 52 
