A treatise on spherical trigonometry, and its application to geodesy and astronomy, with numerous examples. By John Casey.

Second Edition, Price 3s., post free.
A TREATISE
ON
ELEMENTARY TRIGONOMETRY.
BY
JOHN CASEY, LL.D., F.R.S.,
Fellow of fte Royal University of Ireland; Corresponding Member
of the Royal Society of Liege; &c., &c.
Dublin: Hodges, Figgis, & Co. London: Longmans, Green, & Co.
OPINIONS OF THE WORK.
From SIR ROBERT S. BALL, Astronomer Royal of Ireland.
" So far as I have examined it, it appears to be a gem; and,
like all your works, it has the stamp on it."
From W. J. KNIGHT, LL.D., Cork.
"Your work on Elementary Trigonometry is, in simplicity
and elegance, superior to any I have seen. I shall introduce it
immediately into my classes."
From the "LONDON INTERMEDIATE ARTS GUIDE."
"This is just the kind of book a student requires, as it represents almost exactly the amount of reading expected of a candidate for the Intermediate Arts, graduated gently, and with a
copious supply of examples."
From the " EDUCATIONAL TIMES."
"This is a Manual of the parts of Trigonometry which precede
De Moivre's theorem. All necessary explanations are given very
fully, and the Exercises are very numerous, and are carefully
graduated."
Price 3s.
KEY TO THE EXERCISES IN THE "TREATISE ON
ELEMENTARY TRIGONOMETRY."
LONDON: LONGMANS & CO. DUBLIN: HODGES, FIGGIS, & CO.
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