INDEX. 



949 



Dermal Appendagesof Polyxenus, 501. 

 Desniostichous Echinids, Acanthology 



of, 849. 

 Destruction and Dissolution, 749. 



, Sudden, of Marine Animals, 34. 



Detmer, W., 386. 



, Vegetable Physiology, 98. 



Detmers, H. J., 440. 



Dewitz, H., 363, 646, 647. 



Diagnostic Value of the Number and 



Height of the Medullary Eays in 



Conifers, 385. 

 Diaphragms, Cylinder, and Coudensers, 



German, 426. 

 Diastatic Ferment of Bacteria, 883. 

 Diatom Types, 548. 

 Diatomaceae, Binocular Vision in the 



Study of, 154. 



, Pfitzer's, 413. 



Diatoms, Arrangement of, 452. 



, Cleaning, 922. 



■ , &c., Extracting from Stomachs of 



Animals, 470. 



, Fossil, of Austria-Hungary, 548. 



in the Jutland " Cement-stone," 



Structure of, 410. 



, Markings of, 264. 



, Motion of, 412, 547. 



, Movements of, 262. 



, Eemoving Air from, 312. 



, Sections of, 695. 



, Structure of. 111. 



Dibdin's (W. J.) Hot Stage, 131. 

 Dicotyledons, Medullary Kays of Coni- 

 fers and, 384. 

 , Medullary Vascular Bundles of 



some, 869. 

 Dictionary, Micrographic, 286. 

 Dictyophora and Acyclus, Leidy"s 



Genera of, 161. 

 Dicyemidse, 213. 

 Didemnidse and Botryllidse, Gemmation 



in, 196. 

 Digestion in Cephalopoda, 36. 

 Digestive Organs, Hydro - Medusa 



■without, 516. 



Processes in Cephalopoda, 636. 



Dimmock, A. K., 46. 



, G., 206, 920. 



Dimorpbism of Foraminifera, 380, 



671. 

 Dingier, H., 88. 



Dinobryou sertularia Ehrenb., 863. 

 Dinophilus apatris, 67. 

 Dippel, L,, 119, 134, 310, 435, 613, 



723, 930. 

 Diptera, Development of Ovary in, 



205. 

 Direction, Sense of, in Animals, 349. 

 Disease, Chestnut, 880. 



, Hyacinth, 686. 



, Potato, New Form of, 687. 



Dispersive Powers and Ptefractive In- 

 dices of Solids and Fluids. 587. 



Displaying, Collecting, and Cultivating 

 Microscopic Aquatic Life, 727, 



Dissolution and Destruction, 749. 



Distichopus, 62. 



Distinctions between Organisms and 

 Minerals, 190. 



Distortions produced by the Camera 

 Lucida, Correction of, 560. 



Distribution of Water in the Helio- 

 tropic Parts of Plants, 387. 



Division and Eegeneration in Eartb- 

 worms, Processes of, 657. 



Cell-, in Cloaterium, 695. 



of Lower Invertebrates, 352. 



of Nucleus, 864. 



of Nucleus and of Cell, 227. 



Dochmius and Ankylostoma, 69. 



Dogiel,A., 632. 



Dolbear, A. E., 440. 



Dorsiventral Polypodiacese, Structure 

 and Branching of, 245. 



Dots, Transparent, in Leaves, 236. 



Dowdeswell, G. F., 345, 399, 422. 



, On a Minute Form of Para- 

 sitical Protophyte, 26. 



Doyere and Milne-Edwards, Camerse- 

 LucidfB of, 119. 



Draper, E. T., 283, 285. 



Drasche, K., 498. 



Drawing Apparatus, Hollo's, 423. 



Drawings and Paintings from the 

 Microscope, 283. 



, Hilgendorf s Apparatus for Micro- 

 scopical Geometrical, 279. 



Dreyfus, L., 146. 



Drop-Black, Ivory, 455. 



Dry Mounting, 737. 



Mounts, Opaque, 601. 



Ducts, Excretory Generative, in In- 

 sects, Development of, 204. 



Dufour, J., 95, 96, 396. 



Duncan, P. M., 172, 615, 616, 6G6, 854. 



Duramen, Formation and Properties of, 

 527. 



Dybowski, W., 378. 



Dyck, F. C. van, 60S. 



Dyed Silks, Microscopical Examination 

 of, 607, 751. 



E. 



Earthworm, Glands of Morren in, 657. 



Earth worms in Propagation of Charbon, 

 541. 



, Processes of Division and Ee- 

 generation in, 657. 



, Turriform Constructions by, 62. 



Ecdysis of Apodemes in Crustacea, 211, 



Echinids, Desmoatichous, Acanthology 

 of, 849. 



