forget the sun, while thanking the manufacturers of lamps and candles,
I should add that I have studied the works of Aristotle according to
the measure of my time and ability.

This work has had the great advantage of having been revised, while
still in manuscript, by Mr. Alfred Robinson, Fellow of New College, to
whom I cannot sufficiently express my obligation. I have availed
myself to the full of the series of criticisms which he was kind
enough to send me. As some additions have been made since then, he
cannot be held in anyway responsible for the faults which less kindly
critics may detect.

For the examples at the end I am mainly indebted to others, and to a
large extent to my ingenious friend, the Rev. W. J. Priest of Merton
College.

My thanks are due also to my friend and former pupil, Mr. Gilbert
Grindle, Scholar of Corpus, who has been at the pains to compose an
index, and to revise the proofs as they passed through the press.

And last, but not least, I must set on record my gratitude to
Commander R. A. Stock, R.N., one of Her Majesty's Knights of Windsor,
without whose brotherly aid this work might never have been written,
and would certainly not have assumed exactly its present shape.

OXFORD,

_October_ 22, 1888.