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but flowering plants are abundant in the higher 

 Cretaceous rocks. Allowing for the fact that closely 

 allied species are often able to live under very 

 different climatic conditions, there can be no doubt 

 that the Cretaceous and Tertiary floras of Greenland 

 indicate an average temperature considerably higher 

 than that which now prevails in the warmest parts 

 of the British Isles. 



In the far south a fairly rich Jurassic flora has 

 recently been discovered by the members of a 

 Swedish Antarctic expedition in Graham's Land in 

 latitude 63°-15 S. and longitude 57° W., which in its 

 general facies bears a close resemblance to the 

 Jurassic flora of Yorkshire. 



Although the great majority of the records of 

 ancient plants are difficult to interpret by reason 

 of imperfect preservation and because of the frequent 

 separation of leaves, stems, and reproductive organs, 

 the student who tries to piece together the disjecta 

 membra of the floras of the past shares the opinion 

 expressed by the late Marquis of Saporta, — ' Si Ton 

 s'attache a les dechiffrer, on oublie bien vite la 

 singularite des caracteres, et le mauvais t^tat des 

 pages. La pensee se l^ve, les idees se developpent, 

 le manuscrit se deroule ; c'est la tombe qui parle et 

 livre son secret.' 



