ERRATA. 



Part I. Page 29, after the title insert [Read June 16, 1852.] 



— — 87, lines 4 & 5 from top,/br rachide utroque latiore, dentibus pro- 



minulis, read rhachide utroque dentibus prominulis (nee con- 

 fertis) latiore. 



— — 114, line 12 from bottom, /"or are read is. 



— — 129, — 19 from bottom, for tiger7-ina read tigerina. 



— — 130, — 15 from top, ybr these re«(? the molluscs. 



— — 165, — 8 from top, /or Cerrig-y-lladion read Cerrig-y-Uadron. 



— — 167, — 10 from bottom, dele impossibility of tracing the beds. 



— — — , — 9 from bottom, after heretofore read erroneously. 



— — 168, bottom line, ybr high read last. 



— — 169, line 13 from bottom, ybr Yuys-dulas read Ynys-dulas. 



— — 172, — 9 from top, Je/'ore were rea<? interbedded rocks. 



— — ■ 197, — 9 from bottom, /or formed rearf found. 



Directions to the Binder. 



Tlie binder is directed to place opposite page 50, Part I. the loose slip relating 

 to the Fossil Plants from Shetland. 



