The American Geologist Vol. XXIII. 
Plate III. 
ESS JV<anA<i3SuScK\it I «? ° ' * Streeii 
fr^ Xi» vrooH Li nr sthte 
Syto-tj- Jtln-^ liSTT! TVit - JVtoiyn.ka.tinn Sa£a.-nel- 
o 
<0 
C9 
oA /.inie^tont. S ygg^.nfe. 
SECTIONS ON MANHATTAN ISLAND, 
