THE AUSTRALIAN NATURALIST. 15 
BOTANY IN RELATION TO GEOLOGY AND 
PHYSIOGRAPHY.) 
(Note on Paper by R. H. Cambage, F.L.S.) 
Tue matter contained in Mr. Cambage’s paper was not 
new, as it has appeared in various papers published by him 
in the Proceedings of the Linnean Society of New South Wales, 
and was summarised in popular form as a Presidential Ad- 
dress to the N.S.W. Institute of Surveyors, and printed in 
the ‘‘Surveyor’’ for January, 1908. Owing, however, to its 
extreme suggestive value to a popular club, the Council asked 
Mr. Cambage to repeat it at one of our meetings, and he 
kindly consented to do so at the March meeting. 
Mr. Cambage’s subject amounts to a zoogeographic 
scheme for the State of New South Wales, founded on a 
study of the botany. He divides the State into four broad 
divisions, each with certain typical flora :— 
(a) Coastal area, from ‘he sea to the dividing range. This 
area is supplied with an abundant rainfall, and the vegetation 
is, in consequence, very rich. The western boundary of 
the area is formed by the western limit of Hucalyptus 
amygdalina. The chief point of interest about it is the 
breaking through of the Hunter Valley at a point where the 
mountain area is narrowed down to a minimum, and the 
irruption of the flora and fauna of the western slope area to 
the coast. 
(b): Mountain area, comprising the dividing range with 
its buttresses and foothills. The botanical boundaries are 
Eucalyptus amygdalina on the east, and the eastern line of 
Eucalyptus albens on the west, while a Kucalypt confined ta 
this area is E. cortacea. 
(c) Western slopes, bounded roughly by a line drawn 
from Corowa to Dubbo, thence between Warialda and Moree 
to the Macintyre. Hucalyptus albens is typical of the area, 
which is bounded by the western limit of this species. 
(d) The interior, chiefly remarkable for the mallee Eu- 
calypts, and a great number of Acacias. 
Incidentally Mr. Cambage discussed the effects of aspect, 
temperature, and geological formation upon the botanical fea- 
tures of a district, and quoted many striking examples. 
The paper as a whole suggests many fields of labour to 
popular workers, particularly in the direction of finding out 
how far Mr. Cambage’s botanical division is supported by 
the distribution of mammals, birds, and insects, 
