( 3 ) 

 ScHMART OF CuBBENT Rbseabches, &c. — Continued. 



TAQn 



Opum and its Ferttlization {f'n Atcaris) 565 



Spernyjf agenesis in Ascaris megalocfphala SBT 



Spermatogenesis in Ascaris megalocephala 6b9 



Kematoids of Slwep^s Lungs 569 



Free-living Nematode* , ., 570 



Trichina and Trichinosis 570 



Cystic Stages of Tieniadx 571 



Anatomy and Development of Trematoda 571 



Worm-fauna of Madeira 573 



Netc Species of Rotifer 573 



Development of the Germinal Layers of Echinoderms 573 



New Genus of Echinoids 574 



Revision of the Genus Oreaster 574 



Organization of Adult Comattdidx 575 



Anatomy of Campanularidm 575 



Structure of the Velellidse 576 



Actinix of the Bay of Naples 577 



Morphology and Anatomy of Ciliated Infusoria 577 



Trichomonas vaginalis 579 



Acanthomelra hemicompressa 579 



Orbvlina universa 579 



Nuclear Division in Aclinospheerium eichhornii 580 



Botany. 

 Homology of the Reproductive Organs in Phanerogams and Vasctdar 



Cryptogams 581 



Influence of Light and Heat on the Germination of Seeds 583 



Origin of the Placentas in the Alsineas {^Caryophyllex) 583 



Gemmx of Aulacomnion palustre 584 



Relation bettceen Increase and Segmentation of Cells 584 



Development of Starch-grains in the Laticiferous Cells of the Euphorbiacex 584 



Constitution of Chlorophyll 584 



Cellulose accompanying the Formation of Crystals 585 



Middle Lamella of tlis Cell-waU 585 



Intercellular Spaces between the Epidermal Cells of Petals 586 



Contents of Sieve-tubes 5i>6 



Organs of Secretion in the HypericacetB 586 



Tracheids of Gymnosperms 587 



Apijaratus in Leaves for Reflecting Light 587 



Swellings in the Roots of Papilionacex 588 



Origin of Adventitious Roots in Dicotyledons 588 



Crystals of Silex in the Vascular Buruiles .. 588 



Effect of Heat on the Growth of Plants 588 



Curvature of Boots 589 



Torsion as a Cause of the Diurnal Position of Foliar Organs 589 



Assimilative Power of Leaves 589 



Quantitative Relation between Absorption of Light and Assimilation ., .. 590 



Causes which Modify tli£ Direct Action of Light on, Leaves 590 



Respiration of Leaves in Darkness 591 



Movemeids of the Sap in the Root-tubers of the Dahlia « .. .. 5Wl 



Absorption of Water by the Capitulum of Composite 591 



Measurement of Turgidity 5U2 



Origin of Root* in Perns 592 



Monograph of Isoetex 5^3 



Systematic Position of Lepidodendron, Sigillaria, and Sligmaria .. .. 593 



Variations in Sphagnum 594 



Se'j:ual Rej/rodurtion in Fungi 594 



Jyife-JIistory of yL'cidium heUidis DC. 595 



Structure and Affinity of Spharia pocula Schweinitz 595 



Sphsuroplea 595 



New Parasite on the Silver-fir 595 



MicrocMcciU prodigiosus within the SfieU of an Egg 596 



Pfujtogeri'Ms Micrococcus 596 



Respiration of Saccharomyees 596 



bacUlus of Cholera 596 



Virus of Anihrax 598 



