No. 379.] REVIEWS OF RECENT LITERATURE. 539 
A special feature of this highly instructive report is the large 
number of analyses of rocks, soils, and water which it contains. It 
is unfortunate, however, that a more definite discrimination is not 
made between observed facts and hypotheses. An analytical table 
of contents and an index, both of which are absent, would have 
greatly enhanced the value of the report. 
