( 3 ) 



Summabt of Current Kesearohes. &c. — continued. 



PAGE 



Notodelphyidze 506 



Organization- of Trilobites 508 



Chemical Composition of Tubes of Onuphis 509 



Nematoid Hsemaiozoon from a Camel 509 



Development of Marine Planaria 509 



Eyes of Planarians 510 



Development of the Orthonectida 511 



Eyes of Rotifers 512 



Anatomy of Holothurians 512 



Hybridization of Echinoidea 513 



Variation in Asterias glacialis 513 



Development of Calcareous Skeleton of Asteroides : 514 



Development of JEquorea 515 



Hybridization in Fresh-water Sponges 515 



Boring Sponges 516 



De Lanessan's Protozoa 517 



Kent's Manual of the Infusoria 518 



Flagellata 518 



Celi-parasite of Frog's Blood and Spleen (Drepanidium ranarum) .. .. 519 



Development of Trypanosoma 520 



New Gregarines 521 



Botany. 



Chemical Difference between Dead and Living Protoplasm (Fig. 90) . . . . 522 



Killing of Protoplasm by Various Reagents 522 



Apical Cell-growth in Phanerogams 523 



Development of Bordered Pits .. .. 523 



Development of Tissue as a Characteristic of Groups of Plants 524 



Stomata of Polycolymna Stuarti 524 



Properties and Mode of Formation of Duramen 525 



History of Assimilation and of the Functions of Chlorophyll ,. .. .. 525 



Theoretical View of the Process of Assimilation 525 



First Products of Assimilation 526 



Absorption of Metallic Oxides by Plants 526 



Decomposition of Calcium carbonate in the Stem of Dicotyledonous Woods 527 



Hypoehlorin 528 



Latex of Euphorbia Lathyris 529 



Darwin's so-called " Brain-function " of the Tips of Roots 529 



Aerial Cultivation of Aquatic Plants 530 



Insectivorous Plants 531 



Climbing Plants 531 



Power of Movement in Plants 531 



Electrical Researches on Plant Forms 532 



Electromotive Properties of the Leaf of Dionxa 533 



Influence of a Galvanic Current on Growing Roots 533 



Schizseacese , 533 



Branched Sporogonium of a Moss 534 



Influence of Light on the Thallus of Marchantia 534 



GoebeVs Muscinese 535 



Development of the Cortex in Chara 535 



Ustilaginem , .. .. 536 



Unobserved Sensitiveness in Phycomyces 538 



Beltrania, a New Genus of Hyphomycetes . . 538 



Chemical Composition of Moulds 538 



Salmon Disease . . 538 



Formation of Saccharomyces in Nutrient Fluids containing various Pro- 

 portions of Nitrogen .. .. 540 



Morphology and Genetic Relationship of Pathogenous Bacteria 541 



Pathogenous Bacteria 541 



Bacterium of Charbon 541 



Connection of Bacteria with Ferments 541 



Life-history of Cora 542 



Minks 1 » Licheno-mycological Symbols 542 



Symbiosis of Algse with Lower Animals 542 



Division of the Cell-nucleus in Spirogyra , 543 



