CONTENTS. XV 



PAGE 



Action of Tannin on the Cilia of Infusoria, with remarks on 

 the use of Solution of Sulphurous Oxide in Alcohol. 



(Figs. 33 and 5i) Part 2 185 



Biltschli's Protozoa „ 221 



Observations on Protozoa „ 222 



New Flagellate — Chlorodesmos hispida „ 223 



Chologonium euchlorum, Ehrenherg „ 223 



Biltschli's Protozoa Part 3 879 



Flagellate Infusorian, an Ectoparasite of Fishes . . , . „ 379 



Gigantic Actinosphcerium Eichhornii 379 



Dimorphism of Foraminifera „ 380 



Vampyrella Eelioproteus, a New Moneron „ 380 



HcBmatozoa of Fishes „ 381 



Characters of Infusoria Part 4 520 



Development and Classification of Polytoma, Ehr „ 521 



Ophryocystis Biitschlii , , 522 



Social Heliozoan , ,, 523 



Living Organisms in Brickwork „ 523 



Eozoon Canadense from Sutherlandshire „ 615 



Cothurnia lata Part 5 668 



The Tintinnodea „ 668 



Nuclei of Protozoa „ 668 



Observations on Actinosphcerium Eichornii 669 



Dimorphism of the Foraminifera „ 671 



New Type of Arenaceous Rhizopoda .. „ 672 



Fully formed Embryos within a PMzopod „ 672 



Detection of Polycystina within the Hermetically-closed 



Cavities of Nodular Flints „ 673 



Endoparasitic Protista ^^ 673 



Studies on the Gregarinida j, 675 



Chlorophyll in Vorticellce Part 6 860 



Action of Tannin on Infusoria j, 861 



New Swiss Infusoria ^^ 861 



New Perit7'ichous Infusoria ggl 



Abyssal Type of Orbitolites 862 



Trypanosoma balhiani 862 



Chrysopyxis bipes Stein (^Dinobryon sertularia Ehrenb.) , . , 863 



BOTANY. 



A.— Genebal, including Embryology and Histology of the Phanerogamia. 



Development of the Pollen of Orchidece Part 1 84 



Formation of the Pollen-grains in Gymnosperms .... 84 



Conduction of Pollen-tubes 86 



Female Flowers of Coniferm 86 



Flower adapted for Fertilization by Snails 87 



Insects and the Cross-fertilization of Flowers „ 87 



Development of the Wing of the Seed of RMnanthus ., .. „ 87 



Nature of the Growing Point ,, 88 



Apical Growth in Gymnosperms „ 88 



Cell-Nucleus , , 88 



Structure and Formation of the Cell-Nucleus „ 89 



