turbances of the vegetable organisms, or affect the agency dl | 
humidity, temperature, soil, and elevation, on plants. 
On the Fossil Flora of Australia, and its Geology in relation the 
Existing Flora. ‘ 
# 
___-* J. B. Jukes, ‘ Physical Structure of Australia, p, 89, ete 
+ Moy in Ann. Nat, Hist., vol. xx, p. 152. 
+ Journ, Geolog. Soc, Lond.,-vol. iv, p. 60. 
