xxiv CONTENTS. 



PAGE 



XL Researches on MalfatWs Problem. By H. F. Talbot, Esq., . 127 



XII. On the Law of Frequency of Error. By Professor Tait, . . 139 



XIII. On the Application of Hamilton's GJiaracteristic Function to Special 



Cases of Constraint. By Professor Tait, . . . 147 



XIV. On the Tertiary Coals of New Zealand. By W. Lauder Lindsay, 



M.D., F.L.S., &c, Honorary Fellow of the Philosophical Insti- 

 tute of Canterbury, New Zealand, .... 167 



XV. On Variability in Human Structure, with Illustrations from the Flexor 

 Muscles of the Fingers and Toes. By W.\i. Turner, M.B. (Lond.) 

 F.R.S.E., Senior Demonstrator of Anatomy in the University 

 of Edinburgh, ....... 175 



XVI. Examination of the Storms of Wind which occurred in Europe during 

 October, November, and December 1863. By Alexander Buchan, 

 M.A., Secretary to the Scottish Meteorological Society. (With 

 nine Plates, X1II.-XXL), . .... 191 



XVII. On the Celtic Topography of Scotland, and the Dialectic Differences in- 

 dicated by it. By W. F. Skene, Esq., .... 207 



XVIII. On the Bands formed by the Superposition of Paragenic Spectra pro- 

 duced by the Grooved Surfaces of Glass and Steel. Part I. By 

 Sir David Brewster, K.H., F.R.S., Lond. and Edin. (With 

 a Plate, XXII.), ...... 221 



XIX. On the Bands formed by the Superposition of Paragenic Spectra pro- 

 duced bij the Grooved Surfaces of Glass and Steel. Part II. By 

 Sir David Brewster, K.H., F.R.S., Lond. and Edin. (With 

 a Plate, XXIIL), ...... 227 



PAET II. (1865-66.) 



XX. On the Influence of the Doubly Refracting Force of Calcareous Spar 

 on the Polarisation, the Intensity, and the Colour of the Light which 

 it Reflects. By Sir David Brewster, K.H., F.R.S., . . 233 



