Notes and Memoranda — continued. pagb 



On some Genera of Acarina ^17 



Parasitic Chyletidx 418 



Intimate Structure of the Central Nervous System of Decapodous Crustacea 419 



Functions of the Ganglionic Chain in the Decapodous Crustacea .. .. 419 



Male Organs of the Decapodous Crustacea 420 



Central Nervous System of the Crayfish 422 



Heart of the Crayfish and Lobster 423 



New Branchiopoda off the French Coasts 424 



On the Crustacea of the Mozambique 425 



Pneumonia produced by a Filarian Worm 425 



On Sagitella ( Wagtier) 425 



Embryogeny of Asteriscus verrunulaius 428 



On the Skeleton of the Asteriadse 428 



Besearches into the Hydrozoa 430 



Spongicola fistidaris, a Eydroid inhabiting Sponges 431 



Deep-sea Si phonophora ^ 432 



Histological Characters and Development of Myriothela 432 



Structure of the Aplysinidse 434 



Structure of Spongelia 436 



Evolution of the Infusoria from the Lower Protozoa 438 



Acinetx and Vorticellse 438 



Besearches on (he Acinetse 438 



The Noctilucse 440 



Flagellum of Euglena viridis 441 



Botany. 



Chemical Composition and Function of Leaves 442 



Fermentation in the Tissues of Plants 442 



Assimilation of Soda by Plants 443 



Nutrition of Phanerogamic Parasites 444 



Polyembryony, true and false, and its relation to Parthenogenesis . . . . 444 



Luerssen's Handbook of Cryptogamic Botany 445 



Anomalies in the Development of the Lowest Organisms 446 



Influence of Light on the Movements of Mobile Spores 447 



Entophytic and Entozoic {parasitic) Species of Cryptogams 448 



Germination of the Schizssacem 451 



Belationship of Oidium albicans and Mycoderma vini 453 



Alcoholic Fermentation 453 



Experimental Besearches on a Leptothrix 454 



Sexuality of the Ascomycetes 454 



Polymorphism of Agaricus melleus , 455 



Conidia of Fistulina hepatica 456 



Morphology and Biology of the Phycochromacese 456 



Halosphxra, a 7iew Genus of Unicellular Algx 458 



Black Mildew of Walls 459 



MiOEOSCOPT. 



Employment of Wet Collodion for Microscopic Sections 460 



Method of Preserving the more delicate and perishable Animal Tissues . . 461 



Preparation and Preservation of the Lower Organisms 462 



Another Method of Preserving Bacteria, &c 464 



Mounting Noctiluca miliaris 464 



Searching for Trichinse 465 



Method of Studying the Structure of Vegdahle Matter 465 



Tldn Stages 465 



Contrivance for Holding Objects beneath the Stage 466 



New Microtome 466 



Electrical Mounting Table 469 



English Microscope for Students of Mineralogif and Petrology 470 



Female Microscopical Society 472 



Oblique Illumination 473 



Limits of Accuracy in Measurements with the Microscope 473 



Boyal Society Conversazione 473 



Bibliography .. .. ,. .. ., .. .. .. 474 



Peoobbdings op the Society .. .. .. .. ., .. 488 



