A two-page installment from a Victorian engineering series on weaving, covering the hand loom's drop-box. It first notes how plain weaving can be varied with threads of different thickness or colour, and how several shuttles are used for different wefts. It then gives a detailed mechanical description of Robert Kay's drop-box (c. 1760), a three-shuttle version with shelves, pickers, hooks, pins, cords and levers, illustrated by Figs. 40-48. It closes with remarks on the difficulty of fitting multiple shuttles to power looms.