| It was much easier to read and was available in octavo form and could be effortlessly held in the hand easily. |
| John Woodhouse did at least 72 of the 150 paintings for the imperial folio edition and 5 additional plates for the octavo edition. |
| The text was extensively altered for the second edition of 1875, and the format was reduced to the usual crown octavo. |
| The five volumes consisted of an octavo of 786 pages of descriptive matter and four imperial folios containing 213 plates. |
| One is a substantial octavo in plain dark binding, the other a twelvemo, in dainty green and white covers. |
| Folded one more time, the sheet produces a book-sized format call an octavo. |
