STAMENS, occurrence of rudimentary. -conversion of, into pistils. -into petals.

Staphylea.

STEENSTRUP, Prof., on the dog of the Danish Middens. -on the obliquity of flounders.

STEINAN, J., on hereditary diseases.

STEPHENS, J.F., on the habits of the Bombycidae.

STERILITY, in dogs, consequent on close confinement. -comparative, of crosses. -from changed conditions of life. -occurring in the descendants of wild animals bred in captivity. -individual. -resulting from propagation by buds, cuttings, bulbs, etc. -in hybrids. -in specific hybrids of pigeons. -as connected with natural selection.

STERNUM, characters of the, in rabbits. -in pigeons. -in fowls. -effects of disuse on the.

STEWART, H., on hereditary disease.

STIGMA, variation of the, in cultivated Cucurbitaceae. -satiation of the.

STOCKHOLM, fruit-trees of.