ATLAS. 



GEOLOGICAL MAP OF THE STATE, 1900. N. H. WINCHELL. 



This map is formed by uniting not only the plates, but also the descriptions of 

 the rock formations of the various volumes of the final report. It also contains 

 more than the data that have been published, for it gives an idea of the geological 

 boundaries through some long stretches where, by reason of the heavy drift sheet, 

 the correct location of these boundaries is unknown, but where by a general knowl- 

 edge of the rocky structure those lines can be shown with an approximation to the 

 truth. Therefore, while it should not be interpreted too closely, it is the final result 

 of the survey, in epitome, as to the geographic limits of the main formations. 



A more detailed tabulation of the formations will be found in the preface of 

 volume v. N. H. w. 



