gravel

The defendant below hired the horse to go from Cocksackie to Schodack, and the next day after his arrival at the latter place, the horse was found to be lame in one foot; and the lameness increasing, the defendant below was obliged to leave the horse there, and hire another with which to return. About four weeks after, the horse was brought home, and showed signs of gravel working out above the hoof.

A malady that was rare, but which because of its peculiarity elicited much comment, was "night blindness" or "gravel."