( 3 ) 



SuMMAET OF CuRBENT Reseaeohes, &c. — Continued. 



PAGE 



Development of Annelids , 507 



Nervous System of Hirudinea 509 



Bite of the Leech 509 



Development of Plioronis 509 



Development of Sipunculus nudus .. .. .. .. 510 



Sternaspis scutata 512 



Monograph of the Chsetognatha 512 



Direct lieprodudion of Tienia 512 



Democrinus parfaiti 512 



Structure of Hijdfoid Polyps 513 



Development of Hydra 514 



Alternation of Generations in Hydro-medus3i 515 



Sydro-medusse without Digestive Organs 516 



Phylogeny of the Siphonophora 516 



Blue Colouring Matter of Rhizostoma 518 



Emhruonic Tentacular Knols of certain Physophores 518 



Australian Aplysinidx 519 



Characters of Infusoria 520 



Development and Classification of Polytoma, Ehr 521 



Ophryocystis Biltschlii 522 



Social Heliozoan 523 



Living Organisms in BrickworJc 523 



Botany. 



Continuity of Protoplccsm through the Walls of Cells 524 



Pollination of Biding ia ■.. 525 



Development of Chlorophyll-grains and Pigment-l)odies 525 



Effect of Tension of the Bark on the Formation of the Annual Bings of 



Wood, and 071 the Direction of the Medullary Bays ., 527 



Formation and Properties of Duramen 527 



Pokcrization-iyhenomena of Vegetable and Artificial Colloid-cells 528 



Origin of " Cell-passages " 529 



Collenchyma 529 



Structure of the Pericarp of Orchideis 530 



Chemistry of Woody Tissues .. .. .. .. 530 



First Products of Assiinilalion . .» 530 



Selective Power of Absorption of Boots 530 



Movements of Water in Plants 531 



Movement of Water in the Vessels .. 531 



Exudation of Water from Leaves 531 



Hypoxanthin in the Potcdo .. .. 532 



Function of Tannin in Metastasis .. 532 



Laivs tchich regulate the Production of Male and Female Flowers .. .. 532 



Seleywtropism of Plants .._ „ 534 



Withering of Flowers and Leaf y Shoots 534 



Fatty Acids in Plants . . 535 



Influence of Mineral Substances on Germination 535 



Occurrence of Iro7i in Plants .. 536 



Pcdxontological Development of Cryptogams ,, . ., 536 



Organic Unicellular Bodies in CoclI .. .. .. .. .. .. .. ., .. 537 



Fibrovascidar Bundles of Vascular Cryptogams 537 



Anatomical Structure of Mosses 538 



Hybrid Moss .. .. 538 



Localization of the Hymenium of Fungi 538 



Chemistry of ''■ Fairy-Rings" .. .. 539 



Fungus-Parasites of the Aurantiacea} 539 



^^ Ozonium" ,« ,, ., 539 



Harknessia 540 



Lophiostoraa cscspjitosum . . . . 540 



Oidium albicans , 540 



Investigation and Culture of Pathogenous Bacteria 541 



Earthivorms in Propagation of Charbon 541 



Transmission of Bacteria from the Soil into the Air 541 



Fresh Method of Vaccinution for symptomatic Anthrax 542 



Organic Particles in the Air of Mountains .. .. .. .. 542 



