MATHEMATICS. 17 



GODFRAY Works by HUGH GODFRAY, M.A., Mathematical 

 Lecturer at Pembroke College, Cambridge. 

 A TREATISE ON ASTRONOMY, for the Use of Colleges 

 and Schools. New Edition. 8vo. I2s t 6d. 

 AN ELEMENTARY TREATISE ON THE LUNAR 

 THEORY, with a Brief Sketch of the Problem up to the time 

 of Newton. Second Edition, revised. Crown 8vo. 5*. 6d. 



HEMMINQ AN ELEMENTARY TREATISE ON THE 

 DIFFERENTIAL AND INTEGRAL CALCULUS, for 

 the Use of Colleges and Schools. By G. W. HEMMING, M.A., 

 Fellow of St. John's College, Cambridge. Second Edition, 

 with Corrections and Additions. 8vo. $s. 



JACKSON GEOMETRICAL CONIC SECTIONS. An 

 Elementary Treatise in which the Conic Sections are defined 

 as the Plane Sections of a Cone, and treated by the Method 

 of Projection. By J. STUART JACKSON, M.A., late Fellow of 

 Gonville and Caius College, Cambridge. Crown 8vo. 4J. 6d. 



JELLET (JOHN H.) A TREATISE ON THE THEORY 

 OF FRICTION. By JOHN H. JELLET, B.D., Senior Fellow 

 of Trinity College, Dublin; President of the Royal Irish 

 Academy. 8vo. 8s. 6d. 



JONES and CHEYNE ALGEBRAICAL EXERCISES. 

 Progressively Arranged. By the Rev. C. A. JONES, M.A., and 

 C. H. CHEYNE, M.A., F.R.A.S., Mathematical Masters of 

 Westminster School. New Edition. i8mo. zs. 6a. 



KELLAND and TA1T INTRODUCTION TO QUATER- 

 NIONS., with numerous examples. By P. KELLAND, M.A., 

 F.R.S. ; and P. G. TAIT, M.A., Professors in the department 

 of Mathematics in the University of Edinburgh. Crown 8vo. 

 7J. 6d. 



KITCHENER A GEOMETRICAL NOTE-BOOK, containing 

 Easy Problems in Geometrical Drawing preparatory to the 

 Study of Geometry. For the use of Schools. By F. E. 

 KITCHENER, M.A., Mathematical Master at Rugby. New 

 Edition. 4to. 2s. 



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