CONTENTS (continued). 



PAGE 



VI. The Diurnal Variations of the Wind and Barometric Pressure at Bombay. 



By F. Chambers . 384. 



VII. Researches in the Dynamics of a Eigid Body by the aid of the Theory of 



Screws. By Robert Stawell Ball, LL.D., F.R.S 385 



VIII. On the Fossil Mammals of Australia. Family Macropodil\e. Genera 

 Macropus, Pachysiagon, Leptosiagon, Procoptodon, and Palorehestes. — 

 Part IX. By Prof. Owen : C.B., F.R.S. 386 



XI. Observations on the Currents and Undercurrents of the Dardanelles and 

 Bosphorus, made by Commander J. L. Wharton, of H.M. Surveying- 

 Ship ' Shearwater,' between the months of June and October, 1872 . . 387 

 X. Normal Primary Heptyl Alcohol. By Harry Grimshaw and Carl 



Schorlemmer, F.R.S 393 



XI. On the Organization of the Fossil Plants of the Coal-measures. — Part V. 

 Aster ophyllites. By W. C. Williamson, F.R.S., Professor of Natural 



History in Owens College, Manchester 394 



XII. On a tendency observed in Sun-spots to change alternately from the one 

 Solar Hemisphere to the other. By Warren De La Rtje, D.C.L., 

 F.R.S., Balfour Stewart, LL.D., F.R.S., and Benjamin Loewy, 

 F.R.A.S. . 309 



XIII. On the Structure and Development of the Skull in the Pig (Sus scrofa). 



By W. K. Parker, F.R.S 402 



XIV. Results of the Comparisons of the Standards of Length of England, 

 Austria, Spain, United States, Cape of Good Hope, and of a second 

 Russian Standard, made at the Ordnance Survey Office, Southampton. 

 By Lieutenant- Colonel A. R. Clare:e, C.B., R.E., F.R.S., &c, under the 

 direction of Major-General Sir Henry James, R.E., F.R.S., &c, Director- 

 General of the Ordnance Survey. With a Preface and Notes on the Greek 

 and Egyptian Measures of Length by Sir Henry James 407 



XV. Researches on Emeralds and Beryls. — Part I. On the Colouring-matter 



of the Emerald. By Greville Williams, F.R.S. . 409 



ERRATUM in Number 144. 

 Page 301, line 12 from top, for Blarifone read Blanford. 



TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. 



