CONTENTS. Vll 



Page 



Proceedings at the Friday Evening Meetings of the Royal In- 

 stitution of Great Britain 389 



_ Royal Society of Edinburgh 391 



The late Expedition under Captain Franklin 391 



Glucinum and Yttrium 392 



Action of Sulphuretted Hydrogen on Solutions of Mercury. . 393 

 Salts of Rhodium and Oxides of Palladium— Hyposulphuric 



Acid and Hyposulphates 395 



New Patents 397 



Meteorological Observations 398 



made by Mr. Booth at the Gar- 

 den of the Horticultural Society at Chiswick, near London, 

 by Mr. Giddy at Penzance, Dr.Burney at Gosport, and Mr. 

 Veall at Boston 400 



NUMBER XXX— JUNE. 



Mr. Murchison on the Relations of the Tertiary and Secondary 

 Rocks forming the Southern Flank of the Tyrolese Alps 



near Bassano ^Ol 



Mr. Brayley on the Existence of Salts of Potash in Brine- 

 Springs and in Rock-Salt 411 



Rev.J. B. Emmett on the Specific Gravities of Compound Bodies 416 

 Mr. Lubbock on the Perspective Representation of a Circle. . 420 

 Dr. Bigsby's Sketch of the Topography and Geology of Lake 



Ontario {concluded) 424 



Mr. Nixon on the Measurement (by Trigonometry) of the 

 Heights of the principal Hills of Wensleydale, Yorkshire 



{concluded) 431 



Proceedings of the Royal Society 442 



Geological Society 443 



Astronomical Society 465 



Collection of Minerals for Sale 465 



Meteorological Observations 466 



. made by Mr. Booth at the Garden 



of the Horticultural Society at Chiswick, near London, by 

 Mr. Giddy at Penzance, Dr.Burney at Gosport, and Mr, Veall 



at Boston 468 



Index 469 



