The following changes have been made to the text:
Page 21: "heterogeenity" changed to "heterogeneity".
Page 47: "multipled results" changed to "multiplied results".
Page 59: "pre-Raffaelites" changed to "pre-Raphaelites".
Page 84: "heretogeneity" changed to "heterogeneity".
Page 94: "observedcoexistences" changed to "observed coexistences".
Page 97: "Cirrhipoedia" changed to "Cirrhipedia".
Page 108: "prima facie" changed to "prima facie".
Page 112: "a fortiori" changed to "a fortiori".
Page 124: "irreconcileable" changed to "irreconcilable".
Page 140: "some thing like double" changed to "something like double".
Page 216: "representive" changed to "representative".
Page 291: "inbibe" changed to "imbibe".
Page 306: "whic hthey and living" changed to "which they and living".
Page 359: "of the two races, not" changed to "of the two races, nor".
Page 393: "parenthethic" changed to "parenthetic".
Page 411: "hypertropic" changed to "hypertrophic".