930 
INDEX. 
Dewevre, — ., Photographic Representation 
of Movements of Plants, 514. 
Dewitz, J., Mode of keeping Freshwater 
Animals alive, 432. 
Diaptornus, Spermatogenesis, Oogenesis, 
an'd Fertilization in, 607. 
Diastase, 58. 
, Action upon Starch, 72. 
• in Pollen, 224. 
Diatomaceen-Kunde, Schmidt’s Atlas der, 
527. 
Diatoms, Biology, 655. 
• , Central Body in Cell of, 404. 
, Classification, 656. 
, Collection and Preservation, 282. 
, Moller’s Plates of, 86. 
, Movements, 245. 
, New, 86, 246. 
, Parasitic Fungus in, 900. 
, Propagation by Germs, 655. 
, Structure, 86. 
Dicotyledons, Fossil, 73. 
, Nodes and Internodes of Stem, 60. 
, Origin of Polystely in, 227. 
Dictyonema, 524. 
Dictyosphseria , 521. 
Diechhoff, C., Ectoparasitic Trematoda, 
373, 485, 561. 
Dietel, P., Diorchidium , 654. 
, Puccinia Agropyri, 832. 
Difflughe of Bottom of Lake of Geneva, 
494. 
Diffracting Structure of Striated Muscle- 
fibre, Experiments on, 142. 
Digestive Canal of Orthoptera, 201. 
Tract of Gryllotalpa vulgaris , 781. 
Dimorphism among Pemphigiidse, 357. 
- — - of Hypocrea tuber if or mis, 79. 
Dioptric Conditions for Measurement of 
Optic Axial Angles by means of Polar- 
ization Microscope, 683. 
Dioptrical Principles of Microscope, 135. 
Dioptrie Spherometer, Thompson’s, 131. 
Diorchidium, 654. 
Diplogramma , New Genus of Lichens, 401. 
Diplopoda, Reproduction, 34. 
Diplosomidse, Periodic Regeneration of 
Upper Half of Body in, 467. 
Dipsacus, Capitate Hairs and Motile Fila- 
ments of, 819. 
Diptera, Male Generative Organs, 471. 
Diptychus, Development, 363. 
Discomedusse, Reproduction by Budding 
in, 491. 
Discus proligerus of Capra, Vascular 
Papillae in, 763. 
Disease, Bacillus of Grouse, 846. 
of Peas, 831. 
Diseases caused by Fungi, 831. 
, Fungus-, of Tomato and Date-palm, 
831. 
of Cereals, Loverdo’s Cryptogamic, 
835. 
Diseases, Vine-, New Myxomycetes causing, 
836. 
Dispharagus, Genus, 371, 613. 
Dissecting Microscope, Zentmayer’s. 415. 
Dissemination of Hirudinea by Palmipedes, 
612. 
of Polygon aceae, 639. 
of Seeds, 510. 
Distoma hepaticum, Life-history of, 793. 
Distomidae in Birds, 617. 
of Mammals, 793. 
Distomum, American, 617. 
, Suckers of, 373. 
folium, 486. 
Richiardii, Vitelline Nuclei of, 373. 
Distribution of Aleurone-grains, 57. 
Chaetognatha, 792. 
Copepoda, 39. 
Marine Rotatoria, 488. 
Rotifers, 794. 
Dixon-Nuttail, F. R., 444, 446. 
Doassansia, 524. 
Dock, G., Malarial Infection and Haema- 
tozoa of Laveran, 53. 
| Dodel, R., Starch-grains of Pellionia, 497. 
Dolchinia mirabilis, 467. 
Domec, F., Contribution to Study of Mor- 
phology of Actinomyces, 412. 
Dor, L., Vaccinating Products of Liquid 
Cultures of Tubercle Bacilli, 409. 
Dorididae, Cryptobranchiate, 25. 
Dornbluth, F., Bacteria and Practical 
Hygiene, 539. 
Double Slide Microtome, Beck’s, 894. 
Douliot, H., Apical Growth of Stem and 
Leaf in Grasses, 59. 
Dowdeswell, G. F., the late, 147. 
Dracunculus , Pollination, 509. 
Drawing Apparatus, New Modification of 
Abbe, 263. 
, Winkel’s new, 264. 
Microscopical Preparations, Simple 
Method of, 277. 
Photomicrographic Objects, 874. 
Dredging, Indian Deep-sea, 193, 361. 
Dreyer, F., Principles of Skeletal Archi- 
tecture in Protozoa, 494. 
, Principles of Skeleton-forming, 767. 
Driesch, H., Developmental Mechanics, 
13. 
, Heteromorpliosis of Hydroids, 799. 
, Tectological Studies on Hydroids, 
50. 
Drinking-water, Bacteriological Examina- 
tion, 405. 
Drosten, R., Glass Slide-boxes, 107. 
■ , New Hot Stage, 107. 
Dubief,H., Comparative Biology of Bacillus 
of Typhus and B. coli communis, 252. 
Dubois, R., Phosphorescent Bacterium, 
660. 
Duchartre, P., Germination of Freesia re- 
fracta, 638. 
