692 
INDEX. 
Dewitz, J., Fauna of Wadi Natroun, 153 
— Vitality of Parasitic Nematodes outside 
their Host, 160 
Dextrin as a Reserve-substance, 405 
Diabetic Urine, Bacterium from, 322 
Diaphragm, Origin, 585 
Diastatic Function of Indigoferous Plants, 
509 
Diatoms, Auxospores, 514 
— Chambers and Pores in the Cell-wall, 
308 
— Collecting and Preserving, 344 
— Movements, 308 
— Reproduction, 1 
— Siliceous Valve, 188 
— Structure. 61, 187 
Dichotomy, False, 503 
Dictyota, Reproduction, 307 
Dicyema, Life-History, 396 
Diels, L., Metastasis in Halophytes, 178 
Dierckx, Fr., Anal Gland of Dytiscus, 339 
— Defensive Gland of Brachvnus, 389 
— Pygidial Glands of Staphylinidse and 
Cicindelidae, 481 
Dietel, P., Adaptation of Uredineae to dif- 
ferent Host-plants, 632 
Dietrich, A., Acid-resisting Bacilli from 
Pus, 527 
Difflugia, Experiments on, 607 
Digestion in Cockroaches, 277 
— in 1 ’ogfis.h, 583 
— in the Meal-Worm, 156 
Digestive Tube in the Larva of Chiro- 
nomus, Histology, 482 
Diguet, Leon, Formation of Pearls, 479 
Dimmer, F., Modification of the Celloidin 
Series Method, 448 
Dimorphism in Crepidula, 1 53 
— in Cruciferse, 295 
— in Curtia, 48 
— in Molluscs, 387 
— Seasonal, in Lepidoptera, 388 
Diphtheria Bacilli, Generalisation, 71 
Modification of Neisser’s Stain, 455 
New Method for Cultivating, 343 
Diplocoecus, New, isolated from Horseflesh, 
526 
— Peptonising, 429 
Diplocoecus lanceolatus, Resistance to 
Drying, 199 
— magnus, 199 
Diplopenis g. n., 38 
Dipuoi, Teeth of Fossil, 474 
Direct Division, 22 
Direct- Vision Spectroscope, 337 
Direction of the Lateral Branches of Trees, 
Causes of, 412 
Discinisea, Larva, 285 
Diseases of Plants, 183 
Dispersion, 125 
Dissecting Mk-roscope, Sayre’s Pocket, 
334 
— Stand by Andrew Ross, 675 
Dissemination of the Seeds of Razou- 
mofskia, 621 
Distemper, Bacillus of ( Febris catarrhalis> 
epizootica canum), 431 
Distoma, Appendiculate, 284 
— Variation in, 284 
Distomum leptostomum Olsson, Develop- 
ment, 489 
Dittrich, G., Development of Helvellinese, 
310 
— Relationship between the Pezizeae and 
the Helvelleae, 65 
Division, Direct and Indirect, 576 
— -Processes in Primordial Ova of an 
Adult, 149 
Dixon, H. H., Minute Organisms in Sea- 
water, 401 
— Possible Function of the Nucleole in- 
Heredity, 611 
— Transpiration, 300 
Doderlein, L., Notes on Arctic Echino- 
derms, 492 
Doesing, — ., Corpus luteum of Sow, 574 
Doflein, Fr., Myxosporidia, 289, 497 
Dogiel, A. S., Fixation after Methyl-blue,. 
665 
— Structure of Herbert’s Corpuscles, 581 
Ddlken, A., Weigert-Pal Staining of very 
Young Brains, 454- 
Dormant Life in Bulbs and Tubers, 52 
Dorsal Organs of Crustacean Embryos, 33 
Dorset, M., New Stain for Tubercle 
Bacilli, 236 
Double-Staining Flagellata, Fungi, and' 
Bacteria, Method, 110 
Downward Growth of Rhizomes, 412 
Doyon, — , Chemical Action of Pathogenic- 
Micro-organisms, 425 
Dragon-flies, Mid-gut, 277 
Drawing Apparatus, Reichert’s New Form, 
225 
Drew, G. A., Contributions to our Kn ow- 
ledge of the Protobranchia, 590 
Drosera, Cytological Changes produced in, 
404 
Duboscq, O. Histogenesis of Poison-gland 
in Scolopendra, 157 
— Methods used for Chilopoda, 544 
— Researches on the Chilopoda, 483 
Duerden, J. E., Relationships of Sticho- 
dactylinse, 164 
Dufour, J., Pearly Glands of the Vine, 174 
Duggar, B. M., Development of the Pollen- 
grain and Embryo-sac in Bignonia, 
410 
— Development of the Pollen-grain in 
Symplocarpus and Peltandra, 504 
— Parasitic Fungi, 421 
Durand, E. J., Embryology of Taxus, 504 
— Washing Apparatus, 444 
Durham, H. E., Impromptu Method of 
Making a Simple Freezing Apparatus-.. 
100 
