want of exercise a cause of variability, ii. [257];
effect of privation of light upon the plumage of birds, ii. [280];
on a sub-variety of the monk-pigeon, ii. [350].
Beddoe, Dr., correlation of complexion with consumption, ii. [335].
Bedeguar gall, ii. [284].
Bee, persistency of character of, ii. [236], [254];
intercrossing, ii. [126];
conveyance, of pollen of peas by, i. 329.
Bee-Ophrys, self-fertilisation of, ii. [91].
Beech, dark-leaved, i. 362, ii. [19];