Observations on the Geology of the United States of America

aggregates Alleghany Alleghany mountains alluvial alluvial formation banks basin beds BRARY CALIFORNIA SAN chrystalline chrystals classes of rocks climate coal Connecticut river consists contain covered decompose decomposition Delaware depositions DIEGO SAN earth edge Europe extensive favourable feldspar gneiss granite grey wacke slate gypsum heat hornblende hornblende rocks Hudson Hudson river iron Lake Champlain Lake Ontario land lime limestone manure masses mation mica mica slate miles Mississippi moisture moun navigation North Carolina north-west occupies old red sandstone oldest red sandstone particles perhaps places primitive formation primitive rocks probable produce pyrites quantity quartz range of mountains ridge rivers RSITY OF SAN SAN DIEGO UNIVERSITY sand and gravel schistose secondary limestone secondary rocks sition situation SITY south-east south-west Stony mountains strata stratification substances surface tains thin tion tolerable soil transition and secondary transition class transition formation UNIV UNIVERSITY DIEGO vallies washed Yadkin river