x ICE RECESSION IN NEW ENGLAND 



toward that end is hopeful yet cautious. He sees the solution in 

 a thorough reconstruction of a standard line of observations in 

 each place, through which to measure and identify the long 

 periods of climatic change. 



The attention which Dr. Antevs has given in the field to the 

 collecting of additional material to check up his correlations and 

 the care with which he has measured his sections, plotted his 

 curves, compared, corrected, and finally combined these curves 

 so as to work out one "normal series" to express continuous 

 climatic variations of more than 4,000 years will be apparent to 

 anyone who examines his data. His patient scientific treatment 

 of the problem will be fully appreciated, however, by those 

 who put these methods to practice and make measurements 

 and graphs of their own. It is a kind of study that will be most 

 illuminating as it comes to be associated with other methods 

 already in use. 



J. W. GOLDTHWAIT 



Dartmouth College, 

 Hanover, N. H. 



