( 3 ) 



Summary of Current Besbarohbs, &c. — continued. 



PAGE 



Circulatory Organs of Isopoda 242 



New Type of Parasitic Crustacean .. ,. 242 



Seison 244 



Organization of Echiurus Pallasii 245 



Nematode Worms in the Urine 249 



Studies on (he Cestoda 249 



New Cestoid Worm 250 



Loss of Hoohs and of the Scolex in the Tmniadss 250 



New Echinoidea 251 



Perivisceral Fluid of the Echinoidea 251 



Pedicellarise and Muscles of Sea-TJr chin 253 



New Asteroidea 254 



Structural Feature, hitherto unhnown among Echinodermata, found in 



Deep-sea Ophiurans ., .. 254 



Early Stages of Renilla . . , . 255 



Development of Campanularia angulata 256 



Development of the Ova of Eudendrium 256 



Sponges of Russia .. 256 



Cilia of Infusoria .. .. .. '.. ., ,. .. 259 



Botany. 



Morphology of the Ovule 260 



Emlryogeny of Lupinus , .. .. 260 



Embryology of Orchis maculata . . 261 



Course of the Pollen-tube in Angiosperms 262 



Nucleus of Vegetable Cells .... . . 264 



Cell-nucleus in the Secretion-receptacles and Parenchymatous Cells of the 



Higher Monocotyledons . . . . 265 



Multinucleated Cells .. ., .. 266 



Hypertrophy and Multiplication of Nuclei in the Hypertrophied Cells of 



Plants 267 



Histological Structure of Succulent Fruits ,. .. 267 



Anatomy of Adoxa MoschateUina 267 



Vasa propria of Phalaris nodosa .. 268 



Explosive Stamens , 268 



Arrangement of Molecules in Trajectorial Curves caused by Growth . . . . 268 



Morphology and Physiology of the Leaf , . . . . . . . 269 



Absorptive and Diffusive Power of Leaves . . , . . . 270 



Colouring Matters of Flowers 270 



Transformation of Albumen in Plants 271 



Chlorophyll lohich does not assimilate 271 



Influence of the Intensity of Light on the Cfdoroplnjll in the Assimilating 



Parenchyma 271 



Heliotropism of the Ivy ,. . . . . . , . . 272 



Pinguicula alpina an Insectivorous Plant 272 



Asparagin .. ,. 273 



Diseases of Plants 273 



Classification of Thallophytes .. .. 273 



Development of Sterile Sporangia in Isoetes lacustris ., 275 



Shoots from the Pedicels of the Inflorescence of Marchantia 276 



Geocalycese .. .. 276 



A neio German Sphagnum 277 



Carbon- and Nitrogen-compounds as Sources of Nutriment for the lower 



Fungi 277 



Pathogenous Fungi in the Animal Organism . . 278 



Spore-diffusion in the larger Elvellacei 279 



Formation and Germination of the Spores of Urocystis 280 



New Entomophthora-f arms . . 281 



Sclerotia from Peziza • 281 



Fungus-parasites of Coniferse .. 281 



Urocystis coi-alloides 281 



Species of Hysterium parasitic on Cruciferas 282 



Chestnut-disease .. 282 



Plant-diseases caused by Fungi 282 



Germ-theory applied to Fungi parasitic on Plants 283 



Composition of the Protoplasm of Mthalium septictim 283 



Intrusion of a Fungus into the Pulmonary Tissue during Peri-pneumonia.. 283 , 



