INDEX. 



755 



Ihering, H. von, Cruciform Muscle of Tel- 



linacea, 147 

 Ijima, I., Studies on the Hexactinellida, 

 ' 424 



Ijukya g. n., 70 

 Ikeno, S., Fertilisation of Salisburia, 664 



— Formation of Spores in Taphrina, 681 

 Illuminating Apparatus, Seibert's, 704 



. See Contents, xxxiv 



Imbedding Bath, 465 



— Objects. See Contents, xxxvi 

 Imliof, O. E., Antennas of Odonata, 415 



— Insect with Many Eyes, 149 



— Ocelli, 413 



Imhof, O. S., Aquatic Mollusca of Switzer- 

 land, 411 



Immermann, F., Attachment of Young 

 Sea-Anemones to an Adult, 653 



Impatiens and Tropaeolum, Embrvogenv, 

 174 



Impregnation and Development of Arche- 

 gone in Tsuga canadensis, 299 



— Double, ia Aninosperms, 57 

 in Caltha, 57 



— Hypodermic, of Hs&menteria cosiata, 



419 



— in Angiosperms, 301 



— in Cucurbita 1'epo, 433 



— in Hxmenteria costata, 280 

 — . See also Fertilisation 

 Incubation, Artificial, of Alligator Eggs, 



255 

 Incubator, Electrically heated, 462 



— New, 461 



Indian Ocean Dredging, 29 

 Indican and its Enzymes, 169 

 Infundibulum, Function in Larval Fish. 



634 

 Infusoria, New, 545, 654 



— of Lake Geneva, 164 



— Parasitic, 46 



Injecting Objects. See Contents, xxxvii 

 Injury to Vegetable Cells caused by Cold, 



Plasmolysis, and Desiccation, 293 

 Insect with Many Eyes, 149 

 Insects as Factors in the Spread of Bac- 

 terial Diseases, 312 



— as Living Substratum for Cultivating 



Infectious Diseases of Man and 

 Animals, 710 



— Constancy in their Visits to Flowers, 



412 

 Insecta. See Contents, xiii 

 Instinct, Adaptation of, in a Trap-door 



Spider, 276 

 Instruments, Accessories, &c. See Con- 

 tents, xxxiv 

 Integument of Erethizon dorsalis, 23 

 Intestinal Mucous Membrane of Lota vul- 

 garis, 139 



— Secretion in Crickets, 528 



Intra vitam Staining of Micro-organisms, 



601 

 In vertebra ta. See Contents, xii 

 Inverting Sugar, Presence in Grapes, 51 

 Iridyonia g. n., 189 



Iris Diaphragm, Seibert's Cylinder, 705 

 Iron, Allotropic, and Carbon, 100 



— and Nickel Alloys, Micro-structure, 312 



— and Phosphorus, 608, 721 



— and Steel, Crystalline Structure, 99 

 Relation of Chemical Composi- 

 tion and Microscopical Structure to 

 Physical Properties, 341 



— Crystallography, 610 



— Diffusion of Elements in, 344 



— Hsematoxylin Staining Method, Modi- 



fication, 601 

 Irritability of Phanerogams. See Con- 

 tents, xxv 

 Irritation in Plants, Conduction, 667 

 Isaria arbuscula, 72 

 Islands of Langerhans in Pancreas, 20 

 Isler, E., Nemertea from Chili, 538 

 Isoetes, Structure, 62 

 Isopods, Deep-sea, 418 



— Pak-earctic, 154, 277 



Issel, R., Fauna of Hot Springs, 267 

 lulus, Nest, 643 



lulus terrestris, Volatile Poison, 33 

 Ivanowski, — ., Mosaic Disease of Tobacco 



Plant, 452 

 Iwanoff, L., Appearance and Disappear- 

 ance of Phosphorus Compounds, 669 

 ■ — ■ New Species of Gonyostomum, 165 



— Stigeoclonium, 66 



Iwanoff, — ., Formation of Asparagin'and 



Proteids in Plants, 43S 

 Ixodes reduvius, Copulation, 153 



J. 



Jacky, E., Parasitic Fungus, 445 

 Jacobitz, E., Spore-formation of Anthrax 



under Anaerobic Conditions, 6S9 

 Jaczewski, A. von, Parasitic Fungus, 444 

 Jagodowski, K. P., Endings of Olfactory- 

 Nerves in Fishes, 405 



— Nerve-endingrs in Pike, 513 

 Jahn, E., Dictydium umbilicatum, 569 

 Janet, C, Morphology of Insect's Head, 



147 

 Jaquet, M., Comparative Anatomy of 



Cervical Sympathetic System, 638 

 Jencic, A., Action of Low Temperatures on 



the Germination of Seeds, 556 

 Jennings, H. S., North American Rotatoria, 

 651 



— Rotatoria of the United States, 160 



— Significance of Spiral Swimming, 518 

 Jensen, O., Enzymes in Cheese, 181 

 Jenson, A. S., Eggs of Myxine, 254 

 Jerke, M., Oxyuris curvula and O. masti- 



godes, 420 



