apparent exceptions to law of, ii. 327;

the will secretly controls the law of, ii. 328.

Astronomy, what it teaches, iii. [37];

source of its certainty and comprehensibility, i. 86;

its method, i. 87;

Ptolemaic, i. 64.

Athanasius, iii. [439].

Atheism, what strengthens the reproach of, ii. 379;

not necessarily materialism, ii. 131, 132.

Atom, assumption of, not necessary, iii. [44] seq.;