Part 40

By RICHARD OWEN, F.R.S.,

Superintendent of the Natural History Department in the British Museum.

"The Prince of Palæontologists has here presented us with a most comprehensive survey of the characters, succession, geological position, and geographical distribution of the various forms of life that have passed away."--Medical Times and Gazette.

EDINBURGH: ADAM AND CHARLES BLACK.

TRANSCRIBER'S NOTE

Italic text is denoted by underscores. Superscripts are denoted by ^ eg Lith^{rs} Edin^r.

Basic fractions are displayed as ½ ⅓ ¼ etc; other fractions are shown in the form a/b, eg 3/11 or 13/(34×2).

Most entries in the Table of Contents had a corresponding section heading in the text. Twelve entries had a corresponding page-header, on odd-numbered pages, but no section heading in the text itself. All the page-headers have of course been removed in the etext. To improve readability these twelve section headings have been created and inserted in the etext; they have been italicized to indicate they have been added by the transcriber.

The caption for an illustration is displayed as a sidenote in the etext. It was shown as a page footnote in the original text.

Obvious typographical errors and punctuation errors have been corrected after careful comparison with other occurrences within the text and consultation of external sources.

Except for those changes noted below, misspelling in the text, and inconsistent or archaic usage, have been retained. For example, planished; punctated; coal-field, coalfield; criddles.

Pg 11, 'silicicified' replaced by 'silicified'. Pg 39, '1-20th' replaced by '1/20th' for consistency. Pg 42 Footnote , 'I split' replaced by 'a split'. Pg 73 Illustration, 'Fg. 61' replaced by 'Fig. 61'. Pg 79, 'aborescent' replaced by 'arborescent'. Pg 102, 'to difficult' replaced by 'too difficult'. Pg 105, '29. The Pliocene' replaced by '28. The Pliocene'. Pg 111, 'Erom the Gault' replaced by 'From the Gault'.