DUPLICATION OF GENERATIVE NUCLEI BY MEANS OF 
PHYSIOLOGICAL STIMULI AND ITS SIGNIFICANCE 
EF 
II. 
IV. 
VI. 
VIF 
VIII. 
IX. 
by Dr. W. E. DE Mor 
(with Pl. I—VI) 
TABLE OF CONTENTS 
Genetica V 
page. 
PAE RUD UCGLLO Name antl a ashe! PA + Gr" 226 
ORIGIN OF THE MATERIAL USED IN THE EXPERIMENTS AND 
ITS TREATMENT UP TO THE TIME OF FLOWERING . ZN 
INVESTIGATION OF THE HABIT OF THE LIVING POLLEN- 
GRAINS, GERMINATION-EXPERIMENTS 229 
POLLINATION, FRUITING, AND FORMATION OF THE SEED 234 
EXAMINATION OF THE MIKROTOME-SECTIONS MADE OF THE 
ANTHERS WITH ABNORMAL POLLENGRAINS 236 
CAN A CONNEXION BE DEMONSTRATED BETWEEN THE VERY 
DIVERSE HABIT OF THE POLLENGRAINS AND THEIR DEVE- 
OPERA POSE ERA 239 
THE TREATMENT OF THE SEEDS AND THE CYTOLOGICAL IN- 
VESTIGATION OF THE SEEDLINGS 243 
REMARKS ABOUT THE PRECEEDING CHAPTERS, IN CON- 
NEXION WITH SOME FACTS KNOWN FROM THE LITTERATURE 247 
DOES THE CAUSE OF THE ORIGIN OF THE EXPERIMENTALLY 
OBTAINED TRIPLOID PROGENY CORRESPOND WITH THAT 
OF THE ORIGIN OF THE TRIPLOID VARIETIES OF Hyacinthus 
orientalis WHICH APPEARED IN THE DUTCH CULTIVATIONS? 254 
ON THE PARALLELISM BETWEEN THE RESULTS OF THE CY- 
TOLOGICAL-HEREDITARY INVESTIGATION OF Oenothera AND 
OF Hyacinthus orientalis . 259 
MEGS oy SR ERI Se NA, à Us 265 
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