number of tail-feathers in, i. 159.
_Ectopistes migratorius_, sterile hybrids of, with _Turtur vulgaris_, i.
193.
EDENTATA, correlation of dermal system and teeth in the, ii. 328.
EDGEWORTH, Mr., use of grass-seeds as food in the Punjab, i. 309.
EDMONSTON, Dr., on the stomach in _Larus argentatus_ and the raven, ii.
302.
EDWARDS and COLIN, on English wheat in France, ii. 307.
EDWARDS, W. F., absorption of the minority in crossed races, ii. 87.
EDWARDS, W. W., occurrence of stripes in a nearly thoroughbred horse, i.
57;
in foals of racehorses, i. 59.
EGGS, of fowls, characters of, i. 248;
variations of, in ducks, i. 281;
of the silkmoth, i. 301.
EGYPT, ancient dogs of, i. 17-18;
ancient domestication of the pigeon in, i. 204;
absence of the fowl in ancient, i. 246.
EGYPTIAN goose, hybrids of, with penguin duck, i. 282.
EHRENBERG, Prof., multiple origin of the dog, i. 16;
dogs of Lower Egypt, i. 25;
mummies of _Felis maniculata_, i. 43.
ELEMENT, male, compared to a premature larva, ii. 384.
ELEMENTS of the body, functional independence of the, ii. 368-371.
ELEPHANT, its sterility in captivity, ii. 150.
ELK, Irish, correlations in the, ii. 333-334.
ELLIOT, Sir Walter, on striped horses, i. 58;
Indian domestic and wild swine, i. 66;
pigeons from Cairo and Constantinople, i. 132;
fantail pigeons, i. 146;
Lotan tumbler pigeons, i. 150;
a pigeon uttering the sound _Yahu_, i. 155;
_Gallus bankiva_ in Pegu, i. 236.
ELLIS, Mr., varieties of cultivated plants in Tahiti, ii. 256.
ELM, nearly evergreen Cornish variety of the, i. 363, ii. 310;
foliage-varieties of the, i. 362.
ELM, weeping, i. 361;
not reproduced by seed, ii. 19.
_Emberiza passerina_, ii. 158.
EMBRYOS, similarity of, i. 12;
fusion of, ii. 339.
ENGEL, on _Laurus sassafras_, ii. 274.
ENGLAND, domestication of _Bos longifrons_ in, i. 81;
selection of horses in, in mediaeval times, ii. 203;
laws against the early slaughter of rams in, ii. 203.
EPHEMERIDAE, development of the, ii. 366.
_Epidendrum cinnabarinum_ and _E. zebra_, ii. 134.
EPILEPSY, hereditary, ii. 8, 78.
ERDT, disease of the white parts of cattle, ii. 337.
ERICACEAE, frequency of contabescence in the, ii. 165.
ERICHTHONIUS, an improver of horses by selection, ii. 202.
ERMAN, on the fat-tailed Kirghisian sheep, i. 98, ii. 280;
on the dogs of