Richard Russell essentially made one notebook work as two. He would record the morning sermon in one direction in his notebook, being careful to write only halfway down each page. For the afternoon sermon, he simply flipped his book and wrote in the other direction. This two-direction recording in notebooks was extremely practical and fairly common. When referring to the text in such handwritten books, archivists typically refer to Part One and Part Two in order to distinguish the two overlapping texts.
Courtesy of the American Antiquarian Society.