viii CONTENTS. 



Page. 



XX. — Descriptions of several New or Rare 

 Native Plants, found in Scotland, 

 chiefly by the late Mr George Don 

 of Forfar, By Mr David Don, 294 



XXI. — On the Rocky Mountain Sheep of 

 the Americans, By Professor Ja- 



meson, , 306 



XXII. — On the Bed of the German Ocean, 

 or North Sea. By Robert Ste- 

 venson, Esq 314 



XXIII. — Additional Observations on the 

 Connection between the Primitive 

 Forms of Minerals, and the Num- 

 ber of their Axes of Double Re- 



fraction. By Dr Brewster, 337 



XXIV. — An Account of some of the Crypto- 

 gamous Plants of Devonshire. By 

 Robert Kaye Greville, Esq 351 



XXV. — Account of a Beluga, or White 

 Whale, killed in the Frith of Forth. 

 By Dr Barclay and Mr Neill, 371 



XXVI. — Description of a New Species ofFu- 



cus, found in Devonshire. By Mr 

 Greville, 396 



XXVII. — On the British Species of the Genus 



Beroe. By Dr Fleming, 400 



