958 ERRATA. 



Page 34S, ninteenth line from top, for " Genoa," read " Gann." 



" 346, eighth line from top, for " eighty-eight," read " eight." 



" 346, thirteenth line from top, for " Hard," read " Hurd." 



" 346, twenty- Becond line from top, for " covered," read " caused." 



" 349, ninteenth line from top, for " northern," read "northwestern." 



" 351, eleventh line from top, for "north," read " south." 



'' 352, fifteenth line from top, for " foundation," read "formation." 



" 484, seventeenth line from top, for " where," read " whose." 



*' 520, sixth line from top, for "working," read " resting." 



" 521, sixth line from top for " north," read "south." 



" 525, ninth line from bottom, for " third," read "thin." 



" 528, fifth line from top, for "forming the," read " form of." 



" .529, ninth line from top, for "northward," read " southv.'ard." 



" 533, eighteenth line from top, for " subdivision," read " subsidence." 



" 533, fourteenth line from bottom, for "combination," read " continuation." 



" 534, sixteenth line from bottom, for "north," read "south." 



" 537, second line from top, for " abrasion," read " absence." 



" 537, second line from bottom, for " north," read " south." 



" 548, twenty-first line from bottom, for " Shopter," read " Shipler." 



*' 548, nineteenth line from bottom, for "fine," read "fair." 



" 549, second line from bottom, for " separated," read " represented." 



" 551, third line from top, for " Mort's," read " Mott's." 



" 551, tenth line from bottom, for " Dagger," read " Daggen." 



" 553, sixth line from bottom, for " represented," read " separated.'' 



" 554, twelfth line from top, for " remarkable," read " workable." 



" 555, fifth line from top, for " recovering," read " securing." 



" 555, fourteenth line from top, for "probably," read "possibly." 



" 560, thirteenth line from top;, for "buried," read "bnrned." 



" 561, nineteenth line from top, for " disappearance," rea-d "appearance, 



" 567, sixteenth line from bottom, for " iheir," read " thin." 



" 571, thirteenth line from top, for " thick vein, "read " thickness." 



" 571, sixteenth line from bottom, for " Imley," read " Insley." 



" 667, twenty-third line from top, for " interspersed," read " interposed ;" for "same 



stem," read "sandstone." 



" 669, thirteenth line, for "7," read "3." 



" 677, second table, transpose "22,90," and ".10," and for "iron phosphate," read 



" lime phosphate." 



" 690, first line, for ■' firmly," read "finely." 



" 690, sixth line from top, for "round," read "sand." 



" 694, twenty-second line from top, for " north," read " south.' 



" 695, second line, for " west," read "east." 



" 699, twenty-third line from top, for " north," read "south." 



" 699, thirty-first line from top, for "northward," read "southward." 



" 708, third line from bottom, for " nominal," read " normal." 



" 710, twelfth line from bottom, for " north," read " south." : 



" 714, twenty-second line from bottom, for " villages," read " valleys." 



