Roux, on the struggle of the parts in the organism, [87], [100];
on development in altered conditions, [177];
on forces controlling nuclear division, [231], [361];
on karyokinesis, [359].
Rudimentary organs, [88];
disappearance of, [291];
not found in parthenogenetic forms, [293].
Rumia Crataegata, [394].
Sachs, on reproduction in Mosses, [212];