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

Recently published, Crown 8vo, 350 pp., cloth, 7/6.
A TREATISE
ON THE
ANALYTICAL GEO0METRY OF THE POINT, LINE,
CIRCLE, AND CONIC SECTIONS,
CONTAINING
ûn <omut itaof most tent ^mmwsf
WI IT NUMEROUS EXAMPLEES.
BY
JOIHN CASEY, LL.D., F.R.S.,
Fellow of the Royal University of lreland; Member of the Council
of the Royal Irish Academy; &c., &c.
Dublin: Hodges, Figgis, & Co. London: Longmans, Green, & Co.
OPINIONS OF THE WORK.
From GEORGE GABRIEL STOKES, President of the loyal Society.
" I write to thank you for your kindness in sending me your
book on the 'Analytical Geometry of the Point, Line, Circle,
and the Conic Sections.'
" I have as yet only dipped into it, being for the moment very
much occupied. Of course from the nature of the book there is
much that is elementary in it; still I see there is much which I
should do well to study."
From PROFESSOR CAYLEY, Cambridge.
"I have to thank you very much for the copy you kindly
sent me of your treatise on 'Analytical Geormetry.' I am glad to
see united together so many of your elegant investigations in this
subject."
From M. H. BROcARD, Capetainle du Genie à Montpellier.
"J'ai en hier l'agréable surprise sur laquelle je me complais
d'ailleurs depuis un certain temps de recevoir votre nouveau
'Traite de Geométrie Analytique.'
"Je me suis emerveillé du soin que vous avez apporté à la redaction de cet ouvrage, et je forme dès aujourd'hui les voeux les plus
sincères pour que de nombreuses editions de ce livre se répandent
rapidement dans le public mathematique et parmi la jeunesse
studieuse de nos universités."
5