E. White, A Practical Treatise on the Game of Billiards, 1807 (London: W. Milller).
White is writing about English Billiards, which includes both pocketing and caroms. He discusses the four ways to hit the cue ball, which we would call center ball, follow, draw and jump shots. He does not spend any time on side spin since his book was written before tips existed. He does recommend chalking (or using a file) before hitting the ball above or below center. For pocketing, he illustrates and discusses full, 3/4, 1/2, 1/3, 1/4 and 1/8 hits and diagrams shots to practice. He discusses strategy such as which shots are two-way.
The book is available as a very well-done hardback reprint from Carter Adams, who usually has a copy up on Ebay for about $40 but not right now. I have an extra copy of the original.
Kentfield's book (Edwin Kentfield, The Game of Billiards, 1839 London:Thurston) was in print until 1886. It is also about English Billiards. He illustrates the proper stance, the 17 points to hit on the cue ball (center, slightly off-center, well off-center in each of 8 directions), full, 3/4, 1/2, 1/4 and fine-ball hits on the object ball, how to make a bridge, the natural dead-ball bank angles, how the cushions react differently to different speeds of stroke, how the margin of error changes with distance from the pocket, the need to play with a level stick unless you want a jump, the masse stroke, the effect of side on the cushion (a ball going straight up the middle of the table goes to either a corner or a side pocket), the basic idea of the difficulty of pocketing a ball being the product of distances in the shot, the danger of balls jumping from pockets if struck too hard, and that shots along the cushion should be shot at low speed to prevent rejection, etc. He also illustrates "aim-and-pivot" or "backhand english" for squirt compensation, although he doesn't call it that (page 166 of the PDF mentioned below). He illustrates swerve on english shots, and balls arcing due to follow and draw.
You can see the entire 5th edition (1850) on-line at books.google.com -- just stick "Kentfield billiards" into the search box. You can download the PDF which is about 3MB. The 5th edition has some additional material compared to the first. The 6th (1886) appears to be an unaugmented reprint of the 1st but in a smaller format. I have an extra copy of the 6th edition.