in ancient Egypt, i. 66, 67 sq., 225, 230 sq.;

in ancient Babylonia, i. 66 sq.;

positive and negative, i. 111 sq., 117;

blent with the worship of the dead, i. 164;

physical basis of, i. 174 sq.;

public and private, i. 214 sq., 245;

benefits conferred by, i. 218 sq.;

has paved the way for science, i. 219;

attraction of, i. 221;

fatal flaw of, i. 221 sq.;