...of the island had rested on primitive. During an excursion last summer, an opportunity was afforded of ascertaining and extending the limits of the transition...Lake Champlain and in the state of Vermont with more precision. The third and fourth chapters, are an attempt to apply Geology to agriculture, in showing...

...1818. Regarding New York State he says. " During an excursion last summer an opportunity was afforded of ascertaining and extending the limits of the transition...states of Pennsylvania and New York, as well as the boundary of the great primitive formation, north of the Mohawk, and fixing the limits of the transition...

...1818. Regarding Xew York State he says, '' During an excursion last summer an opportunity was afforded of ascertaining and extending the limits of the transition...states of Pennsylvania and New York, as well as the boundary of the great primitive formation, north of the Mohawk, and fixing the limits of the transition...

...extending the limits of transition in the states of Pennsylvania and New York, as well as the boundary of the great primitive formation north of the Mohawk...Lake Champlain and in the State of Vermont with more precision." As best he could at the time, McClure mapped this whole region, his revised map appearing...

...excursion last summer ( 1817) an opportunity was afforded of ascertaining and extending the limits of transition in the states of Pennsylvania and New York, as well as the boundary of the great primitive formation north of the Mohawk and fixing the limits of the transition...

...of the island had rested on primitive. During an excursion last summer, an opportunity was afforded of ascertaining and extending the limits of the transition...Lake Champlain and in the state of Vermont with more precision. The third and fourth sections, are an attempt to apply Geology to agriculture, in showing...