{ 3 ) 

 Summary of Current Rksearohes, &'c. — ronthved. 



PACK 



Anatomy of the Hirudinea 893 



External Morpholocfij of the Lpeeh 896 



Action of a Secretion ohtaintd from the Medicinal Leech on the Coagnlation 



of the Blood 896 



Organization of Echinorhynchi 897 



Entozoic Worms 898 



Nervous System of Trematodes .. .. 898 



Rhabdoccela from the Depths of the Lake of Geneva 898 



Physiology of a Green Planarian 899 



Structure of Echinoderms 000 



Nervous System of Antedon rosaceus 901 



Nervous System of Crinoidea ,. 902 



Asteroidea of the Norivegian North Sea Expedition 903 



Mimnster, a New Asterid . . . . 903 



Amphicyclus, a New Holothurian 903 



Cuvierian Organs of the Cotton-Spinner 901 



Vosmaers Sponges 904 



Nuclei of Infusoria 905 



New Infusorian — Ctedoctema acanthocrypta •• 905 



New Fresh-tcater Infusoria 9o7 



Life-history of Sientor cmruleus 907 



New Protozoa 908 



"■ Challenger^ Foraminifera 90i> 



Copulation in Difflugia globulosa 911 



Development of Stylorhynrhus longicollis 912 



Flagellated Organisms in Blood of Animals 913 



Parasitic Proteromonadidx .. .. 913 



Botany. 



Ohservations on Vegetable and Animal Cells 914 



Structure and Division of the Nucleus 915 



Formation of Endosperm in Daphne 915 



Method of Bursting of Sporangia and Pollen-sacs 916 



Pollen from Funereid Garlands found in an Egyptian Tomb 916 



Swelling Properties of Vegetable Cell-membrane 916 



Epidermal Tissue of tJie Boot , 917 



Loiticels .. .. 917 



Torsion of Twining Stems 917 



Structure and Growth of Palms 917 



Honey-glands of Cruciferx 918 



Resin-deposits 918 



Distribution of Food-materials in the Plant 918 



Transpiration of Plants in the Tropics 919 



Chemical Phenomena of the Assimilation of Plants 919 



Ui^to-Cliernistry of Plants 919 



Pure Chlorophyll 920 



Lime and Magnesia in Plants 920 



Easily Oxidizable Substances in Plant Sap 921 



Action of Nitrous Oxide on Vegetation 921 



SilicificQtion of Organs 921 



Influence of Solar Rays on the Temperature of Trees 921 



Thermic Constants in Plants 921 



Chemical Changes in their Relation to Micro-Organisms 922 



Comparative Morphology of the Leaf in Vascular Cryptogams and 



Gymnosperms 922 



Apex of the Leaf in Osmunda and Todea 923 



Ruh'-nhorst's Cryptogamic Flora of Gerrnany (^Vascular Cryptogams) ,. 924 



Bruithwaite's British Moss Flora .. 924 



HohhirlCs British Mosses 924 



Cf^ll-di vision of Characete , . 925 



J'hoKphf/rescent Fungi 925 



Parasitic Ilymenomycetes 925 



Mode of Bursting of the Asciin the Sordarieie 926 



Aclim/myces 926 



Rhizomyxa, a New Phyromycete 927 



Effect of Light on the Cell-division of Saccharomyces 928 



Behaviour of Blood-corjMicles to Patliogenous Micro-organisms 928 



Micrococci of Pneumonia 929 



Micro-organism of Zooglmc Tuberculosis 929 



Microbe of Typhoid Fever of Man 930 



Bacillus of Cholera and its Culture 930 



InfluencA of Culture Fluids and Medicinal Reagentt on the Growth and 



Development of BaciUui tuberculosit 932 



