CONTENTS. 



Pag* 



X. On the Meteorological Tables kept in 1822 at Macquuric Har- 



bour and Hobart's Town in Van Diemen's Land, and transmit- 

 ted to theRoyal Society of Edinburgh, by his Excellency Sir Thomas 

 Brisbane, K. C. B. F. U.S. ... 75 



XI. Notice of the Echinodermata of the Frith of Forth. By Mr. John 

 Foggo, Junior, Leith. Communicated by the Author. - 77 



XII. Observations on the Temperature of the Sea and the Air, made dur- 

 ing a Voyage from the Cape of Good Hope to St. Helena, in 1820. 



By John Davy, M. D. F. R. S. Communicated by the Author. 79 



XIII. Account of an Insect of the Genus Urocerus, which came out of 

 the Wood of a Table. By Mr. John Foggo, Leith. Communicated 



by the Author. - - - - - 85 



XIV. On the Regular Composition of Crystallized Bodies. By Wil- 

 liam Haidinger, Esq. F. R. S. E. Communicated by the Au- 

 thor. — (Continued from Vol. I. p. 333.) ... 88 



XV. On the Emigration of a Colony of Caterpillars, observed in Pro- 

 vence. From the MS. Tour of James Skene, Esq. of Rubieslaw. 93 



XVI. Notice respecting the Discovery of a Black Lead Mine in Inver- 

 ness-shire, on the property of Glengary, ... 97 



XVII. On the Formation of Single Microscopes from the Lenses of 

 Fishes, &c. By David Brewster, LL. D. F. R. S. and Sec. R. S. 

 Edinburgh, ...... 98 



XVIII. Description of a New Self-acting Lever Sluice, and of a Waster 

 Sluice, invented by Robert Thom, Esq. Rothesay. Communi- 

 cated by the Author, - - - - - 100 



XIX. Description of an Extraordinary Parhelion observed at Gotha on 



the 12th May, 1824, ..... 10.5 



XX. On the Botany of America. By William Jackson Hooker, 

 LL. D. F. R. S. E. Communicated by the Author, - 108 



XXI. On the Production of Crystallized Minerals by heat. By Mr. E. 

 Mitscherlich, Professor of Chemistry in the University of Ber- 

 lin, - - - - - 129 



XXII. Notice respecting Euchroite, a New Mineral Species. By Wil- 

 liam Haidinger, Esq. F. R. S.E. Communicated by the Author, 133 



XXIII. Contributions to Popular Science, - 135 

 No. III. On the Structure of Rice Paper. - - ib. 

 No. IV. On the Convergency of the Solar Beams to a point 



opposite the Sun, - - • - 136 



XXIV. History of the Great Mass of Native Malleable Iron of Louisiana, 

 now deposited in the Museum of the New York Historical Society, 138 



XXV. On the Existence of Siliceous Solutions in the Drusy Cavities of 

 Minerals. - - - - - - -140 



XXVI. DECISIONS ON DISPUTED INVENTIONS AND DISCO- 



VERIES, - - 143 



1. Professor Leslie's Differential Thermometer invented by Profes- 

 sor Sturmius. 2. Daniell's Flatina Pyrometer, partly anticipated 

 by 31. Guyton. 3. Mr. Nicholas Mill's Pyrometer, anticipated 

 hy Dr. Ure, ... ." . 114— 1 IS 



