fountains of Bombay to keep them from becoming breeding-grounds for
mosquitoes, and they are now largely used throughout India for this very
purpose. It will be recognised, therefore, that Mr. Aitken studied
natural history not only for its own sake, but as a means of benefiting
the people of India, whom he had learned to love, as is so plainly shown
in _Behind the Bungalow_.

He was an indefatigable worker in the museum of the Bombay Natural
History Society, which he helped to found, and many of his papers and
notes are preserved for us in the pages of its excellent _Journal_, of
which he was an original joint-editor. He was for long secretary of the
Insect Section, and then president. Before his retirement he was elected
one of the Vice-Presidents of the Society.

Mr. Aitken was a deeply religious man, and was for some twenty years an
elder in the congregation of the United Free Church of Scotland in
Bombay. He was for some years Superintendent of the Sunday School in
connection with this congregation, and a member of the Committee of the
Bombay Scottish Orphanage and the Scottish High Schools. His former
minister says of him, "He was deeply interested in theology, and
remained wonderfully orthodox in spite of" (or, as the present writer
would prefer to say, _because of_) "his scientific knowledge. He always
thought that the evidence for the doctrine of evolution had been pressed
for more than it was worth, and he had many criticisms to make upon the
Higher Critics of the Bible. Many a discussion we had, in which, against
me, he took the conservative side."

He lets one see very clearly into the workings of his mind in this
direction in what is perhaps the finest, although the least well known
of his books, _The Five Windows of the Soul_ (John Murray), in which he