PROCEEDINGS OF 



THE ROYAL SOCIETY. 



VOL. xvii. No. 110. 



CONTENTS. 



Fehmary 25, 1869. 



PAGE 



Note by Professor Cayxey on his Memoir " On the Conditions for the Ex- 

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

 Binary Quartic or Quintic " 314 



March 4, 1869. 



I. Appendix to the Description of the Great Melbourne Telescope. By T. B. 



Eobinson, D.D., F.E.S., &c , 315 



II. Note on the Formation and Phenomena of Clouds. By John Tyndall, 



LL.D., F.E.S 317 



III. On the Behaviour of Thermometers in a Vacuum. By Benjamin Loewy, 



F.B.A.S 319 



IV. Account of the Building in progress of erection at Melbourne for the Great 



Telescope. In a Letter addressed to the President of the Boyal Society 



by Mr. B. J. Elleby, of the Observatory, Melbourne 328 



March 11, 1869. 



I. Contributions to the Fossil Flora of North Greenland, being a Descrip- 

 tion of the Plants collected by Mr. Edward Whymper during the Sum- 

 mer of 1867. By Prof. Oswald Heeb, of Zurich 329 



II. On the Specific Heat and other physical properties of Aqueous Mixtures 

 and Solutions. By A. Dupee, Ph.D., Lecturer on Chemistry at the 

 Westminster Hospital, and F. J. M. Page 333 



March 18, 1869. 



I. Besearches into the Chemical Constitution of Narcotine, and of it3 Pro- 

 ducts of Decomposition.— Part III. By A. Mattheessen, F.B.S., Lec- 

 turer on Chemistry in St. Bartholomew's Hospital 337 



For continuation of Contents see the 1th page of Wrapper. 



