( 3 ) 



Summary op Cuheent Eeseaeches, &c. — continued. 



TAGB 



Anatnmy and Histology of PohjopJdhalmus piotus . . .. 655 



Annelids from Thau 655 



Observations on Phreoryctes and Nais 655 



Glands of Morren in the Earthworm ., 657 



Processes of Division and Regeneration in Earthworms 657 



Excretory Organs of Eirudinea . . . . , . 657 



Nervous System of Solenophorus .. 658 



Development of Planariapolychroa.. .. 658 



Physiology of Echinodermata 659 



Organization of Echinoderms ., 661 



' Challenger ' OpMuroids .. ., . . , . . . 661 



New OpMuroids , . . , . . 662 



Neio Crinoid from the Southern Sea 662 



Cnelenterates of the Southern Seas .. 663 



Observations on Medusse 664 



Jteproduction of Hydroid Polyps . . . . . . 665 



Neiv Hydroid Polyp 666 



Hard Structures of the Fungiidx .. .< .. .. .. 666 



Ovum of Marine Sponges .. .. .. .. .. .. .. 667 



New British Sponge 668 



Cothurnia lata ., .. .. .. 668 



The Tinlinnodea 668 



Nuclei of Protozoa .. 668 



Observations on Actinosphmrium eichornii .. .. .. 669 



Dimorphism of the Foraminif era .. ., - 671 



New Type of Arenaceous Rhizopoda.. .. .. 672 



Fully formed Embryos within a Bhizopod .. .. •• •• •• •• •• 672 



Detection of Polycystina within the hermetically-closed Cavities of Nodular 



Flints 673 



Endoparasitic Protista ., .. 673 



Studies on the Gh-egarinida .. 675 



Botany. 



Morphology of the Embryo 675 



Cellulin, a modification of Cellulose . . .... .. 676 



Protrusion of the Endosperm through the Micropyle .. .. 677 



Development of the Pollen of Juncacese and Cyperacese 677 



Continuity of Protoplasm through Walls of Yegetdble Cells .. 677 



Pores in the Outer Walls of Epidermal Celh .. .. 678 



Physiology of the Undulations of the Lateral Walls of the Epidermis .. . . 678 



Structure and Function of the Epidermal Tissue 679 



Protective Sheath and its Strengthenings . . . . . . . . 679 



Haptera .. ,. 680 



Chlorophyll and Chlorophyllan .... 6S0 



Chlorophyll and the Distribution of Energy in the Solar Spectrum .. .. 682 



Crystalline Secondary Pigments of Chlorophyll .. . . 682 



Crystalloids in the Pyrolaceee 683 



Inulin in the Artichohe 683 



Mentzelia Isevicaulis as a Fly-catcher . , . . . . . , 683 



Rabenhorsfs Cryp'.ogamic Flora of Germany, &c 683 



Cryptogramme and Pellxa .. .. 684: 



Abstriction and Separation of the Spores of Fungi 684 



Fungus parasitic on a mature Coleopter 685 



New or little-hioicn Parasitic Fungi 685 



Exoascus of the Cherry 686 



Hyacinth-diseases 686 



Identity of Oidium monosporium West, Peronospora obliqua Cooke, and 



Ramularia obovata Fkl 686 



New Form of Potato Disease 687 



Spermamaibie of the Sapolegniem 687 



Schizomycetes 6S8 



Action of Heat on Pathogenous Bacteria 690 



Fermentation of Bread ., .. 690 



Morphology and Development of Cladoniace^ 690 



Structure of Caliciex , 691 



Structure and Fertilization of Florideie ,. .. ,. 691 



6 



