384 Reviews— Meteorology. 
is an area of exceptional interest to the geologist, who, with this 
book in hand, should be able to find his way to all the important 
sections and exposures, and what is usually difficult without personal 
guidance, to understand them when he gets there. 
Merrorotocy. By A. E.M.Gerppes. pp. xx + 390, with 20 plates, 
some coloured, 11 charts, and 103 figures. London: Blackie 
and Son, Ltd. 1921. 
iA is scarcely necessary to remind geologists of the important part 
played in their science by the mass of phenomena generally 
summed up in the word climate. In fact, this is in some ways one 
of the most important factors in geology. We, therefore, welcome 
the appearance of this book, which gives in a clear form the results 
of the latest investigations in meteorology and the physics of the 
atmosphere in a form convenient for reference. This subject has 
made great strides of late years owing to the possibility of 
observations at great heights, and some of our earlier ideas have had 
to be modified. It is more with climate and meteorological 
phenomena as seen near the surface that the geologist is directly 
concerned, nevertheless, the circulation of the upper atmosphere 
and its control of temperature and rainfall are also of great 
importance. 
Some of the plates, reproductions of cloud-photographs, are very 
beautiful. 
