( « ) 



Beoord op Current Kbskarohes, &c. — continued. 



PAQB 



Nervous Collars of Arthropods 611 



Nerve-endings in Muscles of Insects .. 612 



Habits of Ants 613 



Bespiratory and Circulatory Apparatus of Dipterous Larvx 615 



Blepharoceridse 616 



Tracheal System of Larval Libellulidm 61(j 



Hemains of Branchias in a Libellulid: Smooth Muscle-Fibres in Insects .. 618 



Metamorphosis of Prosopistoma 618 



Piercing Organ of the Lepidopteran Proboscis 619 



Generative Glands and Sexual Products in Bombyx mori 620 



Development of Forficula 621 



Adora sestuum from the Shore at Heligoland 621 



Destruction of Noxious Insects by Mould 622 



Development of the Araneina 622 



Peculiar Modification of a Parasitic Acarian 624 



Structure of Trombidium 625 



Central Nervous System of the Crayfish 627 



Influence of Acids and Alkalies on Crayfishes 628 



Head of the Lobster ., .. 629 



Shoiiened Development in Palxmon potiuna 630 



Toilet-appendages of the Crustacea .. .. ,. 631 



Anal Btspiration of the Copepoda 632 



Parasitic Corycxidse 633 



Parasite of the American Blue Pike 633 



New Crustacea 634 



Genital Glands and Segmental Organs of the Polychseta 635 



Development of the Spermatozoa of the Earthworm 63G 



Embryology of Ligula 637 



Nervous System of the Trematoda 638 



New Turbellarian , .. .. 640 



New Nemerteans 640 



New Genus of Echinoidea 641 



Fossil Tertiary Echini 641 



Mediterranean Echinoderms J 642 



Remarkable Ophiurid 642 



Intracellular Digestion in Ccelenterata 642 



Nervous System of Beroe . . . . 643 



Pleurobrachia pileus 644 



Anatomy and Histology of tJie Actiniae 645 



Structure of some Coralliaria . . . . 648 



Antipatharia of the ' Blake ' Expedition 649 



American Siphonophora ., 649 



Origin and Development of the Ovum in Eucope before Fecundation ., ., 650 



Proportion of Water in the Medusm 652 



A Fresh-water Hydroid Medusa 652 



Physiology of the Fresh-water Medusa 657 



Sponges of the Leyden Museum 661 



Structure and Affinities of the Genus Protospong id, Salter 661 



Batschli's Protozoa 662 



Amaebiform and other new Foraminifera ., 662 



Vumpyrella lateritia ., .. .. 664 



Acinetx l°65 



Botany. 



Disengagement of Carbonic / 'I from Boots 665 



Sensitiveness in the Acacia 665 



Copper in Plants 666 



Action of Ozone on the Colouring-matters of Plants 667 



Bed Cohuring-matter of the Leaves of tlie Virginian Creeper 667 



Chemical Composition of Aleurone-grains 667 



*' Ci stoma" 668 



Apical Growth with several Apical Cells 668 



Structure of the Fructification of Pilularia * . . . . 6(59 



British Moss-Flora 670 



