What would result if the opposite relations of land and water existed?
What confirmation of these conclusions is drawn from the existing climates of different parts of the earth?
Is there any reason to suppose that the relations of land and water which would have produced a warmer climate in former times did not exist?
Transcriber’s Notes
The following is a transcript of the Silurian System table on [page 34] for those who are using screen readers.
Key to Divisions
----------------
C - Cambrian Rocks.
S - Silurian System.
D - Devonian.
Ch - Champlain Division.
On - Ontario Division.
He - Helderberg Division.
Er - Erie Division.
Divisions as recognized Divisions as recognized Pennsylvania Ohio.
by English Authors. by the New York and Virginia.
Geologists.
/--------^----------\ /-----------^-----------\ /-----^----\ /---^----\
{ Upper Cambrian { { Potsdam Sandstone. } No. 1.
{ { {
C { Rocks, of Sedgwick{ { Calciferous Sandrock. }
{ { { Birdseye Limestone. } No. 2. }
{ (probably). {Ch{ Trenton Limestone. } } Blue
{ { } Limestone
{ Llandeilo Flags. { { Utica Slate. } } and Marl.
{ { { } No. 3. }
{ { Hudson River Group. }
{ {
{ { { Gray Sandstone. } No. 4.
{ { { Oneida Conglomerate. }
{ {On{
{ Caradoc Sandstone.{ { Medina Sandstone. } No. 5.
{ { { Clinton Group. }
{ { Niagara Group.
{ { } }
{ { { Oneida Salt Group. } :
{ { { Water-lime Group. } :
{ { { Pentamerus Limestone. } No. 6. :
{ { { Delthyris Shaly } :
{ { { Limestone. } :
S { { { Encrinal Limestone. } : Cliff
{ Wenlock Rocks. {He{ Upper Pentamerus } :
{ { { Limestone. : Limestone.
{ { { Oriskany Sandstone. } :
{ { { } No. 7. :
{ { { Cauda-Galli Grit. } :
{ { { Schoharie Grit. } :
{ { { Onondaga Limestone. Wanting. :
{ { { Corniferous Limestone. Wanting. }
{ }
{ { { Marcellus Shales. } } Black
{ { { Hamilton Group. } } Slate.
{ Upper and Lower { { } No. 8.
{ { { Tully Limestone. }
{ Ludlow Rocks and {Er{ }
: { { Genesee Slate.
D : the Devonian { { }
: { { Portage Group. } No. 9. } Waver
: System. { { } }
{ { {Chemung Group. } } Sandstone.