A bounty upon exportation, by enabling them to send abroad the surplus part, and to keep up the price of what remains in the home market, effectually prevents this.

Never a word spoke they, and the gag effectually prevented me speaking.

Opening this, he found a solid wall of rock confronting him, which effectually prevented his escape in that direction.

As on the first night, a double line of policemen had been formed, which effectually prevented all disorder.

It effectually prevented a bullet from coming from a cartridge.

In his patent he promised his new door was "perfectly noiseless in its operation and effectually prevents the entrance of wind, snow, rain or dust."

From these basins the water is continually exhaled by the sun in the daytime, which effectually prevents their overflowing.

We can throw their hooked poles into the crater, including the one which we use to ascend from the mouth of the tunnel, thus effectually preventing any pursuit.

It has an extremely fetid and disagreeable smell, which will effectually prevent the contact of flies or any other insect.

Then Tom hit on the plan of playing the searchlight on the spot, and this effectually prevented an unseen attack.