Rectification characteristics ofNitella membranes in respect to water permeability Keitaro KiyosawaMasashi Tazawa OriginalPaper Pages: 203 - 214
The division of protoplasts fromAsparagus officinalis L. and their growth and differentiation Duc Bui-Dang-HaIan A. Mackenzie OriginalPaper Pages: 215 - 221
The fine structure of the planarianPolycelis tenuis ijima I. D. BowenT. A. Ryder OriginalPaper Pages: 223 - 241
An ultrastructural study of spore germination in the myxomyceteStemonitis virginiensis Charles W. MimsMilton A. Rogers OriginalPaper Pages: 243 - 254
Changes in the cotyledons ofCucurbita maxima during germination John N. A. LottCatherine M. Vollmer OriginalPaper Pages: 255 - 271
Correlation between rate of cell division and loss of embryogenesis in longterm tissue cultures H. Meyer-TeuterJ. Reinert OriginalPaper Pages: 273 - 283
On the relationship between water-soluble protein and calcium in the egg ofOryzias latipes Reiji Hori OriginalPaper Pages: 285 - 290
Ultrastructure of phloem and its development inGnetum gnemon, with some observations onEphedra campylopoda H. -D. BehnkeG. S. Paliwal OriginalPaper Pages: 305 - 319
Intracellular localization of the multiple forms of ATP-ase activity in maize root tips Mary L. EdwardsJ. L. Hall OriginalPaper Pages: 321 - 338
Centrosomal bodies during meiosis in the foraminiferMyxotheca arenilega schaudinn Dieter Schwab Brief Report Pages: 339 - 341