Logic. By Professor Stanley Jevons. (Science Primers.) (Mac- millan and
Co.)—We might have been sure that the author of this little book, a popular manual of a most abstruse subject, would do his work well; and he has done it, too, without that excessive conden- sation to which barely more that 130 small pages would have seemed to condemn him. Condensation, we have noted, often means absolute unintelligibility. Metaphysical controversy being wisely excluded, the book contains little that is disputable, so little indeed, that the unbiassed reader would never imagine that logic had been the battle- field of philosophers in all ages. Half is devoted to induction, with plenty of happy illustrations, and in our opinion, more than half might have been given up to this branch of the subject, as in our day it is, we believe, to fallacies in the inductive method that people most commonly come to logical grief. Altogether, this little manual well deserves its place in this excellent series.