SEXUAL a.
e, etc., as in many species of butterflies which have two kinds of females. -- Sexual method (Bot.), a method of classification proposed by Linnæus, founded mainly on difference in number and position of the stamens and pistils of plants. -- Sexual selection (Biol.), the selective preference of one sex for certain ch…
SPECTRUM n.
ference to their chemical effects, as in photography. These, in the usual photogrophic methods, have their maximum influence at and beyond the violet rays, but are not limited to this region. -- Chromatic spectrum, the visible colored rays of the solar spectrum, exhibiting the seven principal colors in their order, an…
SPILLET FISHING; SPILLIARD FISHING n.
A system or method of fishing by means of a number of hooks set on snoods all on one line; -- in North America, called trawl fishing, bultow, or bultow fishing, and long-line fishing.
STAFF n.
of a newspaper. Jacob's staff (Surv.), a single straight rod or staff, pointed and iron-shod at the bottom, for penetrating the ground, and having a socket joint at the top, used, instead of a tripod, for supporting a compass. -- Staff angle (Arch.), a square rod of wood standing flush with the wall on each of its si…