XXVlll CONTENTS. 



' PAGE 



Dangeard, p. a. — Sexuality among the Lower Algse Part 2 260 



MiGULA, W. — Effects of dilute Acids on Algss Part 3 418 



BiGELOW, R. P. — Structure of the Frond of Champia parvula „ 418 



MoBlUS, M. — Askenasya polymorplia „ 418 



Noll, F. — Colouring-matter of Bangia „ 418 



HansgirG, A. — Classification of Confervoidem „ 419 



ToNi, G. B. DE, E. DE Wildeman, & A. Hansgirg — Mycoidea, Hansgirgia, 



and Phyllactidium „ 419 



Eeinke, J. — Tilopteridese „ 419 



Stockmayer, S. — New Genus of Desmidiacex „ 420 



Hansgirg, A. — Crenacantha, Feriplegmatium, and Hansgirgia „ 420 



Wildeman, E. DE — Trentepohlia , 420 



ToNi, G. B. DE — Pilinia and Acrohlaste „ 421 



Noll, F. — Influence of Position on the Morphological Development of some 



Siphonocladacese „ 421 



PiccONE, A. — Connection of the geographical distribution of Algse with the 



chemical nature of the substratum Part 4 555 



AsEENASY, E., and OTHERS — Algsd of the ' Gazelle ' Expedition „ 555 



WiLLB, N. — Development of Tissues in Floridex ,, 555 



Eosenvinge, L. K. — Frond of Polysiphonia „ 556 



WiLLE, N., & J. G. Agardh — Apical Cell of Lomentaria and Champia .. „ 556 



Barber, C. A. — Bulb of Laminana bulbosa , 556 



Vries, H. DE — Contraction of the Chlorophyll-bands of Spirogyra .. .. „ 557 



Wildeman, E. DE — Variation in Desmids ,, 557 



Murray, G., & L. A. Boodle — Spongocladia i . „ 557 



Woltkb, G. — Urospora > .. .. „ 557 



ToNi, G. B. DE — Ohionyphe „ 558 



M-VRUAY, G., & L. A. 'BoOBhE-i-Avrainvillea „ 558 



Noll, F. — Cellulose-fibres of Caulerpa , 558 



Klein, L. — Vohox „ 558 



Dawson, Sir W., & D. P. Penhallow — Nematophyton „ 560 



Went, F. A. F. 0. — Vacuoles in Algse Part 5 674 



GuiGNARD, L. — Antherids and Pollinoids of Floridex , 674 



„ „ Antherozoids of Fucacese „ 675 



BoBNET, E. — Ectocarpus „ 675 



SoDERSTROM, E. — Desmarestia aculeata „ 675 



Hariot, p. — Delamarea, a new genus of Phxosporeie „ 676 



Hansgirg, A. — Phxodennatium „ 676 



Kjelman, F. R. — Frond of Chordariacese „ 676 



BOLDT, R. — Distribution of Desmidiacese „ 676 



Mallory, M. L., G. W. Rafter, & J. B. Line — Volvox globator .. .. „ 677 



ToNi, G. B. — Phyllactidium, Phycopeliis, and Hansgirgia Part 6 786 



Atwell, C. B. — Conjugation of Spirogyra „ 786 



Ryder, J. A. — Vokox minor „ 786 



Fungi. 



Johnson, W. — Sporids of Lichens Part 1 97 



Amthob, 0. — Saccharomyces apiculatus „ 98 



Arcangeli, G. — Kefir „ 99 



ZxjKAL, H. — New Type of Hymenomycetes „ 99 



yoLMS-LAUBACH, Graf zu — Ustilago Treubii „ 99 



Bary, a. DE — Saprolegniese „ 99 



FoEX, G., & L. Ravaz — Structure of White Rot „ 100 



WaeburQ, O. — Cancer of the Cinchona ,, 100 



