Note 6 — Valuable Breed of Cattle.
Reading edition
These narrow ridges, as formed by the plough, are sharp; by passing a light roller over them, they are flattened to a breadth of 8 or 9 inches. The light roller, drawn by a horse, that walks in the furrow between them, flattens two ridges at a time. Thus rolled, the manure will be covered 8 or 9 inches deep.