( 4 ) 



8. Incertre Sedis. paoe 



Zelinka, C. — Parotitic Rotifer — Diseopus Synapta 52 



Echinodermata. 



1 1 mi an'n, 0. — ffidohgy of Echinoderrfi8 53 



,, Wandering Primordial Germ-cells in Echinoderms 56 



II \k roc, M. HI. — True Netture. of .the Madr&poric System of Erhinoilermata .. •• 57 



('ii.not. S. Nervous Systeni arid Vascular Apparatus of Ophiurids 57 



OaRpektee, P. [I. — Development of Apical Plates in Amphiura squamata .. .. 58 



lliiiioi akh, E. — Calcar eout Corpuscles of Holathurians 58 



Ccelentei-ata. 



('mix, 0. — Morphology of Siphonophora. 59 



Kkukenberg, 0. F. W. — Influence of Salinity 60 



„ „ Colours of Corals 60 



,, „ Nervous Tracts in Alcyonids 61 



Porifera. 



Hollas, W. J. — Sponges 62 



Ei-.xer, V. v. — Skeleton of calcareous Sponges 63 



Dendy, A. — New System of Chalininie 63 



Potts, E. — Fresh-water Sponges 63 



Fiedler, K. — Development of Generative Products in Spongilla 64 



Protozoa. 



Mai pas, E. — Conjugation of Paramecium .. 65 



Stokes, A. 0. — New Fresh-water Infusoria 65 



Neimayr, M. — Relationships .Of foruminifera 66 



Schewiakoff, W. — Karyokinesis of Euylypha 66 



Kunstler, J. — Diplocystis Schneideri 68 



BOTANY. 



A. GENERAL, including the Anatomy and Physiology 

 of the Phanerogamia. 



a. Anatomy. 

 (1) Cell-structure and Protoplasm. 



Zacharias, E. — Part hiken by the Nucleus in Cell-division 69 



Klebs, G. — Albumen in the Cell-wall 69 



Pichi, P. — Thickening of the Cell- walls in the Leaf -stalk of Aralia 70 



(2) Other Cell-contents (including Secretions). 



Belzung, E. — Starch- and Chlorophijll-grains 70 



Tschikch, Pi. — Quantitative estimation of Chlorophyll 71 



Belluci, G. — Formation of Starch in the Chlorophyll-granules 71 



Pick, R. — Inosite .. .. .. 72 



Schnetzler, J. B. — Tannin in Acanthus spinosus 72 



Barbaglia, G. A. — Chemical substances contained in the Box 72 



Tschihch, A. — Aleurone-grains in the Seed of Myristica surinamensis 72 



(3) Structure of Tissues. 



Calvert, Agnes, & L. A. Boodle — Laticiferous System of Manihot and Hevea .. 72 



Heinbicher, E. — Tubular Cells of the Fumariacese 73 



Tieghem, P. van — Super -endoder mat Nehvork in the Root of the Caprifoliacem . . 73 

 Dangeabd, P. A., & Barbe — Arrangement of the Fibro-vascular Bundles in 



Pinguicula 74 



Petit, L. — Distribution of Fibro-vascular Bundles in the Petiole 74 



Latjx, W. — Vascular Bundles in the Rhizome of Monocotyledons 74 



Jannicke, W. — Comparative Anatomy of Geraniacete 75 



Gregg, \V. H. — Anomalous Thickening in the Roots of Cycas 75 



Krabbe, G. — Formation of Annual Rings in Wood 75 



Gbevillitjs, A. Y. — Mechanical system of Pendent Organs .. .. 75 



Lohreb, O. — Comparative Anatomy of Roots 75 



