What is the time during which one sits while doing something, as reading a book, playing a game, etc. For the understanding of any one of St. Paul's Epistles I read it all through at one sitting. Locke called?

sitting — The time during which one sits while doing something, as reading a book, playing a game, etc. For the understanding of any one of St. Paul's Epistles I read it all through at one sitting. Locke. (Webster's 1913.)