The alternating current is generally used, the action not being electrolytic. One of the special advantages of the electrical over the older process is that the distilling vessels have a longer life, owing to the fact that they are not externally heated, and so subjected to a relatively high temperature when in contact with the corrosive slag formed in the process.
Applied externally strychnine is a powerful antiseptic, but its poisonous nature prevents it from being used for this purpose.
Probably there was little externally to distinguish the prophet of Yahweh in the days of Samuel from the CanaanitePhoenician prophets of Baal and Asherah (1 Kings xviii.
Frankincense, or olibanum, occurs in commerce in semiopaque, round, ovate or oblong tears or irregular lumps, which are covered externally with a white dust, the result of their friction against one another.
EPICYCLOID, the curve traced out by a point on the circumference of a circle rolling externally on another circle.
Cantharides is used externally for its counter-irritant action.
Applied externally lead salts have practically no action upon the unbroken skin, but applied to sores, ulcers or any exposed mucous membranes they coagulate the albumen in the tissues themselves and contract the small vessels.
An ordinary cambium is scarcely ever found in the Monocotyledons, but in certain woody forms a secondary meristem is formed outside the primary bundles, and gives rise externally to a little secondary cortex, and internally to a secondary parenchyma in which are developed numerous zones of additional bundles, usually of concentric structure, with phloem surrounded by xylem.
The third or outermost chamber, the proctodaeum, is closed externally by the sphincter ani; the orifice is quite circular.
The pterygoids are delicate slender slips of bone attached to the hinder border of the palatines, and supported externally by, and generally welded with, the rough pterygoid plates of the alisphenoid, with no pterygoid fossa between.