228 Reviews—Geology of Western Australia. 
marked than that with the existing flora of the Mediterranean area. 
The flora as a whole was probably much richer in species than the 
present-day Central European flora, and was possibly comparable in 
variety, in the number of its species, and in the abundance of its 
trees and shrubs with the present-day flora of Western China. 
Coming to general considerations of plant-distribution, the authors, 
developing the now well-known resemblance between the Eastern North 
American and East Asiatic floras, conclude that the Reuverian fossils 
indicate one of three great streams of migration southwards from 
a common centre in the north, the other two being the Chinese and 
North American. The two latter found an open route to warmer 
regions and survived; the Reuverian, on the other hand, found 
a barrier of seas, deserts, and mountains and perished under the 
rigorous climatic conditions before which it was retreating. 
The greater part of the volume is occupied with a detailed 
systematic description of the fruits and seeds which have been 
separated from the lignitic material. Some botanists may find points 
of issue with Mr. and Mrs. Reid in their general conclusions or in 
some of their specific determinations, but all must admire the 
wonderful patience, industry, and skill of which the present work is 
a monument. The hundreds of beautiful photographic reproductions 
of the objects described are alone of inestimable value. We hope 
that the authors will be able to continue their exploration of these 
interesting deposits. 
AC Beans. 
V.—GerotocicaL SurvEY oF WerstERN AUSTRALIA. 
ULLETIN No. 61, An Outline of the Phystographical Geology 
(Phystography) of Western Australia, by J. T. Jutson, is 
a deliberately educational volume designed to aid the citizens of 
the State to a juster appreciation and a greater knowledge of the 
land in which they dwell. The treatment throughout is thoroughly 
modern, and owes much to the American school of geographers 
headed by W. M. Davis. West Australia is a country of extreme 
geological antiquity, and its great interior plateau, formerly 
a peneplane, is now in a cycle of desert erosion. It presents a series 
of unique physiographical problems, of which, notwithstanding the 
present work, only the fringes have been touched. Mr. Jutson has 
produced a work of extreme interest, readable throughout, which 
will certainly form the starting-point for all future investigation of 
this subject in Western Australia. 
Bulletin No. 56, Zhe Geology of the Country between Kalgoorlie and 
Coolgardie, by C.S. Honman, serves as a connecting lnk between 
previous bulletins describing the country around the above-mentioned 
mining centres. The rocks consist of a series of inclined and folded 
metamorphosed sedimentary rocks, probably Pre-Cambrian in age, 
with intercalated beds regarded as volcanic rocks. The whole series 
is invaded by basic and acid intrusive rocks, but, unlike the 
neighbouring areas, it contains few ore-deposits. The scale on 
which geological surveys are carried out in our great Dominions 
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