ii CONTENTS. 



Art. VI. Observations on the History and Progress of Com- 

 parative Anatomy. By David Craigie, M. 'B. 

 &c. (Continued from p. l62.) - - 29 1 



VII, On Indian Hail-storms. By A. Turnbull Chris- 

 tie, M. D. Communicated by the Author, 30» 

 VIII. On the Form of the Ark of Noah, - - 310 

 IX. Remarks on Audubon's " Birds of America/' and 



*' Ornithological Biography," - - 317 



X. Observations on the Glaciers of the Alps. By F. 



J. HuGi, Professor at Soleure, - - 332 



XI. New Observations on the Blood-like Phenomena 

 observed in Egypt, Arabia, and Siberia ; with a 

 View and Critique of the Early Accounts of si- 

 milar Appearances. By Mr C. G. Ehrenberg. 

 (Concluded from p. 136.), - - 341 



XII. Outlines of a Plan for combining Machinery 

 with the Manual Printing- Press. By John 

 Clerk Maxwell, Esq. of Middlebie. (With a 

 Plate), - - - - - 352 



Mr Fraser's Remarks thereon, - - 357 



Xni. Account of a Platina Lamp. By George Merry- 

 weather, Esq. of Whitby. In a Letter to Pro- 

 fessor Jameson. (With a Plate), - 359 

 XIV. Observations on the Fossil Trees of Van Dieman's 

 Land. By William Nicol, Esq. Lecturer on 

 Natural Philosophy, - - - 36 1 

 XV. Account of the Discovery of Bone Caves in Welling- 

 ton Valley, about 210 miles west from Sydney in 

 New Holland, - - - - 364 

 XVI. Additional Information illustrative of the Natural 

 History of the Australian Bone-Caves and Osse- 

 ous Breccia. Communicated by Dr Lang, 368 

 XV IL Description of several New or Rare Plants which 

 have lately flowered in the neighbourhood of 

 Edinburgh, and chiefly in the Royal Botanic Gar- 

 den. By Dr Graham, Professor of Botany in 

 the University of Edinburgh, - - 371 

 XVIII. Celestial Phenomena from April 1, to July 1. 1831, 

 calculated for the Meridian of Edinburgh, Mean 

 Time. By Mr George Innes, Astronomical Cal- 

 culator, Aberdeen, - - ^ 374 



