3 
Incertse Sedis. page 
Cole, F. J. — Rhabdite-“ cells ” in Cephalcdiscus 490 
Wheeler, W. M. — Sexual Phases of Myzostoma 491 
Davenport, C. B. — North American Fresh-water Bryozoa 491 
Caullery, Me, & F. Mesnil — Development of Orthonectids 491 
Echinoderma. 
Clark, H. L . — Development and Anatomy of Synapta vivipara 491 
Loeb, J. — Experiments with Sea-Urchin Eggs 492 
Doderlein, L . — Notes on Arctic Echinoderms 492 
Russo, A. — Reproductive Organs of Echinoderms 492 
Ccelentera. 
Heider, A. R. v. — Structure of Two Zoantharia 493 
Rand, H. W. — Regeneration in Hydra 493 
Tower, W. L. — Loss of Ectoderm in Hydra viridis 493 
Birula, A. — Species and Environment in Hydroids 494 
Grabau, Amadeus W. — New Family of Palaeozoic Corals 494 
Porifera. 
Girod, Paul — Geographical Distribution of European Spongillidx 494 
„ „ Ephydatia bcihemica Petr 495 
Protozoa. 
Jennings, H. S. — Physiology of Paramcecium 495 
Lauterborn, Robert — Fresh-water Protozoa 495 
Prowazek, S. — Notes on, Protozoa '. . . . 496 
Murray, George, & Frances Whitting — New Peridiniaceee from the Atlantic .. 496 
Folgner, V. — Development of Fresh-water Peridiniaceae 496 
Gruber, A. — Green Amoebae 497 
Doflein, FB.—Myxosporidia 497 
BOTANY. 
A. GENERAL, including' the Anatomy and Physiology 
of the Phanerogamia. 
a. Anatomy. 
(1) Cell-structure and Protoplasm. 
Loew, O . — Chemical Energy of Living Cells 498 
Tswett, M. — Periplasmic Membrane 498 
Gregoire, V. — Kinesis in the Pollen-grains of the Liliaceae 498 
Nemec, B. — Nuclear and Cell-division in Solanum tuberosum 498 
Schaffner, J. H . — Artificial Production of the Sickle- stage of the Nucleole .. .. 499 
C2) Other Cell-contents (including- Secretions). 
Reinke, J., & E. Braunmuller — Aldehyd in Green Leaves 499 
Moeller, J . — Origin of Storax 499 
Newcombe, F. C . — Cellulose Enzymes 500 
(3) Structure of Tissues. 
Steinbrinck, C . — Elastic Swelling of Tissues 500 
„ „ Physics of Cohesion- Mechanism 500 
Hunger, F. W. T . — Mucilage as a Gliding -mechanism 501 
Tschirch, A . — Conducting Tissue of Vanilla Fruit 501 
(4) Structure of Org-ans. 
Lovell, J. H. — Colours of Flowers 501 
Went, F. A. F. C . — Periodicity in the Flowering of Dendrobium crumenatum . . 501 
Laubach, Graf zu Solms — Ovule and Seed of Rafflesia and Brugmansia .. .. 502 
Steinbrinck, C . — Hygroscopic Mechanism of Anthers and Hairs 502 
Rosenberg, O . — Mucilage of the Seeds of Cistaceae 502 
Hegelmaier, F . — Convolute Cotyledons 502 
Wiesner, J . — False Dichotomy 503 
Pee-Laby, E. — Anatomy of Leaves 503 
Haberlandt, G . — Hydathodes of Conocephalus ovatus 503 
Miehe, H. — Stomates of Monocotyledons 503 
Rechinger, K. — Trichomes of the Gesneraceee 503 
Martel, E. — Structure of Hypecoum 50-4 
