OF THE MAP, 



49 



fermination canoot be ascertained. But we see them in thick 

 strata in the heights along the west of the Hudson. And 

 their gradual diminution, and final termination by the meeting 

 of the continued strata, as here represented, as manifest farther 

 south. Whether we ought to consider these as vast beds, or sub- 

 ordinate strata, or depart from the Wernerean plan, by treating 

 them as strata, (on account of their vast extent) and introduce 

 the lateral cuneiform termination, 1 leave for further discussion. 



The section at the bottom of the map, is intended to repre- 

 sent all the five series of formations. As the precise lateral 

 termination of the subordinate strata can not be ascertained, 

 this section must be considered as applied in any part of a belt 

 of forty or fifty miles in breadth. Lines are drawn on the top 

 section to represent the places assigned to this section, and to 

 that which was published in 1824. 



It is manifest that the numerous strata of the middle of this 

 district are reduced to about four general strata, somewhere in 

 Pennsylvania. It is to be hoped that future examinations may 

 settle those limits accurately. And it may be an important 

 subject of enquiry, whether the whole series which seems to 

 terminate somewhere in the north part of Pennsylvania, should 

 not be treated as subordinate. 



(t/^ For references to kinds of soil, see Soil. 



HISTORY OF THE CREATION OF ORGAN- 

 IZED BEINGS, IN REFERENCE TO THE 

 FIVE GEOLOGICAL SERIES. 



1. First Series. . 



No organized beings have been found in this series. Hence No 

 we infer, that granite, mica slate, hornblende rock, talcose ^^^^ 

 slate, granular quartz, and granular limestone, had all been de- 

 posited and become indurated, before any plants or animals had 

 been created. 



7 



