First installment of a serial manual for loom fixers on the Knowles fancy worsted loom, from Posselt's Textile Journal, December 1907. It explains how to lay out floor lines for positioning looms relative to the line shaft, including a floor-plan diagram and methods for getting right angles (the 3-4-5 triangle). It then covers leveling the loom frame, picking shaft, lay, shuttle race and reed line, using a 30 harness, 4 x 4 box loom as the example.