...bright-red, also green and blue, 150 feet ; limestone, in a double series of ledges, 80 feet ; quartzite, reddish, slightly micaceous, then a series of colored...underlying the fossil-bearing limestone cannot be less than 3,000 feet, and is probably much more. All the facts point to a very great development of Lower Silurian...

...bright-red, also green and blue, 150 feet ; limestone, in a double series of ledges, 80 feet ; qnartzite, reddish, slightly micaceous, then a series of colored...them It is enough to say that the total thickness of (he conformable strata underlying the fossil -bearing limestone cannot be less than У,000 feet, and...

...limestone, in a double series of ledges, bl) feet ; quartzite, reddish, slightly micaceous, then a sériée of colored slates, mostly green, followed by shales...farther than we could follow them. It is enough to say tb.il the total thickness of the conformable strata underlying the fossil- bearing limestone cannot...

...red, also green and blue, 150 feet ; limestone, in a double series of ledges, fcO feet; quartzite, reddish, slightly micaceous, then a series of colored...1,000 feet. These extend toward the north farther than wo could follow them. It is enough to say that the total thickness of the conformable strata underlying...

...bright-red, also green and blue, 150 feet ; limestone, in a double series of ledges, 80 feet ; quartzite, reddish, slightly micaceous, then a series of colored...beds of sandstones and limestones, in all probably 1.500 feet ; still further conformable shales, 1,000 feet. These extend toward the north farther than...

...bright red, also green and blue, 150 feet ; limestone iu a double seriesof ledges, 80 feet ; quartzito, reddish, slightly micaceous, then a series of colored...and thin beds of sandstones and limestones, in all probability 1,500 feet ; still further conformable shales, 1,000 feet. These extend toward the north...

...bright red, also green and blue, 150 feet ; limestone in a double series of ledges, 80 feet ; quartzite, reddish, slightly micaceous, then a series of colored...and thin beds of sandstones and limestones, in all probability 1,500 feet ; still further conformable shales, 1,000 feet. These extend toward the north...

...limestone in a doable series of ledges, 80 feet ; quartzite, reddish, slightly micaceous, then aseries of colored slates, mostly green, followed by shales...and thin beds of sandstones and limestones, in all probability 1,500 feet ; still further conformable ebales, 1,000 feet. These extend toward the north...