tJie Earth at different Epochs^ S^c. 



371 



TABLE — co7}ttnued. 



Names of the Classes, 

 Families, aiiil (leiiera. 



Juglandace. 



Juglans, 

 AcerinecB. 



Acer, . 

 NymphaaceeB. 



Nymphaea, 



Dicotyledones of un- 

 certain Family. 

 Exogenites, . * 



IstPe- 

 rlo«l. 



2d Pe- 

 riod 



3dPe 

 riod. 



4ih 

 'Period. 



Names of the Classes, 

 Families, and Genera. 



Many 



Phyllites, . 



Antholithes, 



Carpolithes, 



Vegetables of uncertain 

 Class. 

 Phyllotheca, . . 

 Annularia, . . 

 Asterophyllites, 

 Volkmannia, . . 



l8tPe-2dPe-3dPe- 4th 



riod. 



riod. 



riod. 



Period. 



many 

 several 

 many 



TABLE — Presenting the Number of Species of each Class during 



each Period. 



On the Remarkable Effect of Mountain Echoes, as developed by 

 the Use of the Kent Bugle. By the Reverend William 

 ScoRESBY, F. R. S. L. & E. Member of the French Insti- 

 tute, &c. Communicated by the Author. 



Under the excitement of the sublime appearances of mountain 

 scenery, the sense of sight is not the only faculty which becomes 

 the recipient of delightful impressions. The notes of the wild- 

 fowl, the murmuring of the gentler streams, and the rushing 

 sound of the impetuous cataract, contribute, by their respective 

 intuitive associations, to the interest of the traveller. To these 

 auxiliaries of enjoyment, amid the more splendid exhibitions of 



