Xll CONTENTS. 



TAGE 



Km ii.sky, D. — Natural Immunity of White Mice to Trypanosoma lewisi 459 



Legendre, R., & H. Pieron — I'hysiology of Sleep 459 



Jolly, J. — Hiemapoietic Function of Spleen in Embryo Bird 160 



„ Function of Bursa l r abricii 460 



Streckek, John K., jun. — Notes on the Robber Frog 460 



Dehaut. E. G. — Heart of Lungless Urodela 460 



Stromer, Ernst — Fossil Lepidosirenidx 460 



Frisch, Karl von — Colour-change in Fishes 460 



Tracy, II. C. — Swim-bladder of Teleosts 461 



Chambers, Helen, & S. Russ — Action of Radium Radiations on Blood 'ill 



Bouchard, Ch. — Sleeping and Waking 611 



Truschel — Sense of Direction in Blind 612 



Bartels, Paul — Flica semilunaris in Hereros and Hottentots 612 



Gaupp, E. — Vertebrate Lower Jaw 612 



Allan, Glover M. — Mammals of West Indies 612 



Curl, H. C. — Digestive System of Hornbill 612 



Spdlski, B. — New Species of Odontopteryx , 613 



Juillet, A. — Air-sacs in Birds 613 



Delezenne, C, & S. Ledebt — Snake-poison and Yolk of Egg 613 



Smallwood, W. M., & C. G. Rogers — Effects of Starvation on Necturus maculatus 613 



Kennel, Pierre — Corpora adiposa of Amphibians 613 



Wintrebert, P. — Lateral Line System in Tadpoles of Alytes and Rana 614 



Wolff, Gustav — Regeneration in Newts 614 



Franz, V. — Function of Cerebellum in Fishes 614 



Unna, P. G. — Reduction and Oxidation in Animal Tissues 614 



Bethe, Albrecht — Equilibration in Aquatic Animals 614 



Herdman, W. A. — Summer Plankton of West of Scotland and Irish Sea .. .. 614 



Heinis, Fr. — Moss- fauna of Central America 615 



Petersen, C. G. Joh., & P. Boysen Jensen — Animal Life of Sea-bottom .. .. 741 



Manderh, N. — Validity of some Forms of Mimicry 741 



Toldt, K. — Different kinds of Hair 71- 



Gaupp, E. — Composition of the Lower Jaw .. .. 742 



Trouessart, E. L. — Origin of Domestic Dog 743 



Schmaltz, R. — Reproductive Organs of Domestic Animals 743 



Virchow, Hans — Mobility of Penguin's Vertebral Column 743 



Thomson, A. Landsborough — Migration of Birds 743 



Curtis, Maynie R. — Weighing Parts of Eggs 744 



Phisalix, Marie — Bite of Heloderma 744 



Arthis, M , & B. Stawska — Toxins and Antitoxins 744 



Kennel, P. — Corpora Adiposa of Frog 744 



Reymond, C. du Bois — Tadpoles with strongly developed Lips 745 



Oshima, Hiroshi — Luminous Organs in Fishes 745 



"Williamson, H. Chas. — Ichthyological Notes 746 



Elmhirst, Richard — Ambi-coloured Flatfish 746 



Tunicata. 



Daumezon, G. — Tenacity of Life in Ciona intestinalis 461 



INVEETEBRATA. 



Daday, E. v. — Fresh-water Microfauna from German East Africa 39 



Broch, Hjalmar — Plankton of Spitzbergen 39 



Herdman, W. A. — Scottish and Irish Plankton 355 



Daday, E. von — Micro-fauna of the Nile 355 



Mollusca. 



Nobre, A. — Molluscs of Portuguese East Africa 355 



Stelfox, A. W. — Molluscs of Ireland 356 



Colgan, Nathaniel — Marine Molluscs of Clare Island 461 



Horwood, A. R. — Layers of the Molluscan Shell 746 



