CONTENTS — (continued) . 



February 25, 1869. 



PAGE 



I. Additional Observations of Southern Nebula. In a Letter to Professor 



Stokes, Sec.E.S., by Lieut. J. Hebschel, E.E 303 



IT. Note on the Separation of the Isomeric Amy He Alcohols formed by Fermen- 

 tation. By Eknest T. Chapman and Miles H. Smith 308 



III. Note on the Heat of the Stars. By William Htjggins, F.E.S. . . . 309 



IV. On the Fracture of Brittle and Yiscous Solids by ' Shearing.' By Sir W. 



Thomson, F.R.S 312 



Y. Note by Professor Caylet on his Memoir " On the Conditions for the Ex- 

 istence of Three Equal Roots, or of Two Pairs of Equal Roots, of a 

 Binary Quartic or Quintic " 314 



TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. 



