CONTENTS. 



Page 

 of Natural History in the Marischal College 

 University of Aberdeen. Communicated by the 

 Author, 255 



IX. Notices of Earthquake Shocks in Great Britain, 

 and especially in Scotland, with Inferences sug- 

 gested by these Notices as to the Nature and 

 Causes of such Shocks. By David Milne, Esq., 

 F,R.S.E., M.W.S., F.G.S., &c. Communicated 

 by the Author. (Continued from page 122.) 259 

 X. On two New Species of Leachia. By Henry D. 

 S. GooDSiR, Esq., Surgeon, Anstruther, Fife. 

 With a Plate. Communicated by the Author, 309 



XI. Inquiries, Experimental and Philosophical, con- 

 cerning the Origin of Intestinal Worms. With 

 a Plate. By Dr Eschricht, Professor of Phy- 

 siology in the University of Copenhagen. Com- 

 municated by the Author, . . . . 314 

 XII. Tabular View of an Arrangement of Minerals 

 founded upon Physical and Chemical Charac- 

 ters. Concluded from page 182, . . 357 



XIII. On Parasites, Animal and Vegetable, occurring in 



Living Beings, and especially of a Cryptoga- 

 mous Plant growing in the Air-Ceils of an 

 Eider-Duck and destroying it, . , . 371 



XIV. Notice of Professor Forbes and Agassiz' success- 



ful Ascent of the Jungfrau, . . . 376 



XV. On Sepulchral Remains of Ancient Nations dis- 

 persed through the North of Europe, , . 378 

 XVI. On a Convenient Arrangement in Orthographic 

 Projection. By Mr John Sang, M.S. A. With 

 a Plate. Communicated by the Society of Arts 



for Scotland, 382 



XVII, Observations upon the important part which Mi- 

 croscopic Organisms play in the choking up 

 of the Harbours of Wismar and Pillau; also on 

 the Formation of the Mud wh ic is deposited 

 in the bed of the Elbe, at Cuxhaven, and upon 

 the agency of similar phenomena in the For- 

 mation of the bed of the Nile at Dongola, in 

 Nubia, and in the Delta of Egypt. By M. 

 Ehrenberg, 386 



