TRANSACTIONS 



OF THE 



ROYAL SOCIETY OF EDINBURGH. 



VOL. XXXIX. PART IL— FOR THE SESSION 1897-98. 



CONTENTS. 



Page 

 IX. On the Definite Integral -^— / e~ s dt, with Extended Tables of Values. By Jas. 



Burgess, C.I.E., LL.D., F.R.S.E., . . . . . .257 



(Issued separately, 25th March 1898.) 



X. The Relations between the Coaxial Minors of a Determinant of the Fourth Order. By 



Thomas Muib, LL.D., ........ 323 



(Issued separately, 5th October 1898.) 



XL Cliapters on the Mineralogy of Scotland. Chapter VIII.— Silicates. By M. Foster 

 Heddle. M.D., Past President of the Mineralogical Society of Great Britain, Emeritus 

 Professor of Chemistry in the University of St Andrews, .... 341 

 (Issued separately, 15th October 1898.) 



XII. The Absolute Thermal Conductivity of Nickel. By T. C. Baillie, M.A., B.Sc, Assistant 



Lecturer and Demonstrator in Physics, University College of North Wales, Bangor. 



(With a Plate), .361 



(Issued separately, 22nd October 1898.) 



XIII. The Old Red Sandstone of the Orkneys. By John S. Flett, M.B., B.Sc. (With a Map), 383 



(Issued separately, Zrd November 1898.) 



XIV. On Torsional Oscillations of Wires. By Dr W. Peddie. (With Two Plates), . . 425 



(Issued separately, 6th December 1898.) 



XV. The Strains produced in Iron, Steel, Nickel and Cobalt Tubes in the Magnetic Field. 



Part II. By Professor C. G. Knott, D.Sc, F.R.S.E. (Plates I. and IL), . 457 



(Issued separately, 21st November 1898.) 



XVI. On the Path of a Rotating Spherical Projectile. II. By Professor Tait. (With 



a Plate) 491 



(Issued separately, 1st December 1898.) 



EDINBURGH: 



PUBLISHED BY ROBERT GRANT & SON, 107 PRINCES STREET, 

 ND WILLIAMS & NORGATE, 14 HENRIETTA STREET, COVENT GARDEN, LONDON. 



MDCCCXCIX. 



Price Nineteen Shillings. 



