Note 21 — Preface

The “geometrical pace” is, in English measure, roughly estimated at five feet; in Spanish measure, according to Los Rios’s reckoning—the tercia (or “third”), being one-third of a vara, is equivalent to 11.128 English inches—the geometrical pace would be 55.64 English inches. The length of the wall, accordingly, would be a little less than two English miles.