Unterschiede der Zahmen und Wilden Meerschweinchen (Cavia Porcellus Linn. Und Cavia Rufescens Lund) Bezüglich Ihrer Immunisierbarkeit Durch Diphterieanatoxin Gerta von UbischJandyra Planet do Amaral OriginalPaper Pages: 51 - 58
Meiosis in the pollen mother cells of Canna glauca “pure yellow” F. J. M. Offerijns OriginalPaper Pages: 59 - 65
Chromosome numbers and spermatogenesis in some species of the hymenopterous family cynipidae K. S. Dodds OriginalPaper Pages: 67 - 84
A case of budvariation in phaseolus caused by a transitory plasmatic change M. J. Sirks OriginalPaper Pages: 121 - 158
Studies in viola, 1: The cytology of a naturally-occurring population of hybrids betweenViola tricolor L. andViola lutea huds Philip G. Fothergill OriginalPaper Pages: 159 - 186
A cyto-genetical study of the intergeneric hybrid “Cerapadus” K. K. Yenikeyev OriginalPaper Pages: 187 - 216