sa hnnnalinneenainee oe uuasn in amenities ~sacsld 
Geology. : A27 
the main, and the reedy and grassy islands in the rivers, which are 
now overflowed at every tide, were formerly high swamps of firm land, 
affording forests of cypress, tupelo, Magnolia grandiflora, oak, ash, 
sweet bay, and other timber trees, the same as are now growing on 
surface, before they come to a strata of cypress stumps, and other 
trees, close together as they now grow in the swamps.” 
nalyses are given of various clays—one of a South Amboy fire clay 
which is used for facing paper-hangings, others of pottery clays, &c. 
northern portion of the state (incorrectly called Azoic, as they are not 
of the Azoic age, although without fossils in consequence of metamor- 
phic action), and gives many valuable details respecting the mines of 
copper, zinc, and iron. To this portion of the volume there are con- 
fi 
Shumard j g aleontology. 
\ nati a ae coun are informed by Mr. W. J. 
Taylor of Philadelphia, that he has observed at the Lancaster zinc 
mines, Pennsylvania, beautiful pseudomorphs of Smithsonite having 
the form of dolomite. _ 
é 
