Note 141 — JOURNAL & LETTERS (continued 2)
Reading edition
A merchant mill was a mill in which flour was manufactured and packed for sale. The owner of such a mill customarily purchased wheat for manufacture. In Virginia it was a common practice for the owner of the mill to pay for the wheat in flour. A mill used exclusively for grinding grain for local consumption was called a grist or custom mill. A portion of the grist was usually allowed the owner for his services.