variability in Datura, ii. [266];
hybrids of Datura lævis and stramonium, i. 392;
prepotency of transmission of Datura stramonium when crossed, ii. [67];
on the pollen of Mirabilis and of hybrids, i. 389;
fertilisation of Mirabilis, ii. [363];
crossing of Chamærops humilis and the date palm, i. 399;
cultivated Cucurbitaceæ, i. 357-360, ii. [108];
rudimentary tendrils in gourds, ii. [316];
dwarf Cucurbitæ, ii. [330];
relation between the size and number of the fruit in Cucurbita pepo, ii. [343];