Map of the Towns of Saybrook and Old Saybrook Middlesex County Connecticut.
1853|Woodford, C.E.1:1 980
Map of part of the region in central Connecticut between New Haven on the south and Windsor on the north, showing the trap dikes which intersect the region; a, b, c, d, e, course of western boundary of Triassic, beyond which the rocks are metamorphic
1866|unbekannt
Map of Long Island
1836|J. H. Colton
Manual of Geology: treating of the principles of the science with special reference to American geological history ... Revised edition
1864|DANA, James Dwight.
[Map of part of the region in central Connecticut between New Haven on the south and Windsor ond the north, showing the trap dikes which intersect the region]