( 3 ) 



Summary op Cubrbnt Eesbabohes, &c.— continued. 



PAGB 



Spermatogenesis and Fecundation in Ascaris megalocephala .. .. .. 382 



Structure of Derostoma JBenedeni .. > 383 



Opisthotrema, a New Trematode 884 



Polycladidea . . > 385 



Early Stages in ike Development of Balanoglossus 388 



New Rotatoria .. .. 388 



JEchinoderm Morphology .. 389 



Development of Comatula .. 389 



Pharynx of an unknown Holothurian .. 390 



Mesenterial Filaments of Alcyo^aria .. 390 



Anatomy of Peachia hastata .. .. 391 



Fphyrse of Cotylorhiza and Ehizostoma .. .. .. .. .. •■ .. 391 



Galcisponges of the ' Challenger' Expedition .. .. .. .. 392 



Australian Monactinellida . . . . . . . • 394 



Japanese Lithistidm .. .. .. • •• •* ^^^ 



Fossil Sponges in the British Museum .. 396 



Vosmaer's Manual of the Sponges 397 



Nucleus and Nuclear Division in Protozoa .. ., .. .. 398 



New Infusoria .. 401 



Stenior cseruleus ,. .. .. .. 401 



Chlorophyll-Corpuscles of some Infusoria 401 



Life-History of Clathrulina elegans . . .. .. .. .. 402 



Aberrant Sporozoon .. .. 403 



Noctilucidse .. .. .. 403 



Botany, 



Continuity of Protoplasm .. .. . . . . . • 404 



Continuity of Protoplasm ., .. .. .. .. .. .. 405 



Living and Dead Protoplasm .... 406 



Occurrence of Protoplasm in Intercellular Spaces . , .. 406 



Division of the Cell-nucleus .. .. .. 407 



Apical Cell of Phanerogams .. .. .. .. .. .. 408 



Nettle-fibre 408 



Laticiferous Tissue of Manihot Glaziovii {Ceara Rubber) 409 



Laticiferous Tissue of Hevea spruceana 409 



Development of Boot-hairs .. .. 409 



Symmetry of Adventitious Boots 409 



Penetration of Branches of the Blackberry into the Soil 410 



Circumnutation and Twining of Stems .. .. .. 410 



Vegetable Acids and their effect in producing Turgidity 410 



Metastasis and Transformation of Energy in Plants .. .. 411 



Action of the Different Bays of Light on the Elimination of Oxygen.. .. 411 



Movements caused by Chemical Agents .. .. 412 



Direct Observation of the Movement of Water in Plants .. 413 



Bheotropism.. .. ,. .. 413 



Transpiration .. .. .. .. .. ,,. .. .. 414 



Transpiration-current in Woody Plants .... .. .. 414 



Origin and Morphology of Chlorophyll-Corpuscles and Allied Bodies .. 415 



Spectrum of Chlorophyll .. .. .. ,. , 415 



Portion of the Spectrum that decomposes Carbon Dioxide 415 



Chlorophyll in Cuscuta 415 



Work performed by Chlorophyll 415 



Sphxrocrystals .. .. , 416 



Sphxrocrystals of Paspalum elegans .. .. .. .. 416 



Calcium Oxalate in the Bark .. .. 416 



Stigmarise .. .. ,. .. .. .. ,. .. 417 



Cephalozia . .. 417 



Lamellie of the Agaricini 418 



Formation of Gum in Trees , 419 



Attraction of Insects by Phallus and Coprinus .. .. 420 



Development of Ascomycetes ,. .. .. .. .. 420 



Fungi Parasitic on Forest-trees.. 421 



Pucdnia graminis on Mahonid Aquifolium 423 



Polystigma rubrum .. .... . . .... . . . . . . 423 



