A one-page Scientific American item describing Arthur Barbarin's patented metal clasp for fastening hoop-iron bands around cotton bales, offered as a replacement for rope ties. It explains the fire-resistance argument, how the C-shaped and slotted clasps work, and how the bands can be reused. It gives patent dates (US Oct. 20, 1866; English Oct. 29, 1866) and notes the patentee wished to sell the rights. An engraving shows a banded bale and the two clasp types.