51�Թ�

A gathering of five sheets making ten leaves was called a quinternion, and this, though it has yielded no modern word, was for generations such a popular form that quinterniones was sometimes used as a general expression for manuscripts.

The book, when complete, consists of eight quaternions or eight leaves folded together and one quinternion or section of five sheets folded together, making in all seventy-four leaves, of which the first and last are blank.