Great Britain. Foreign Office. General correspondence before 1906 : Mexico 1822-1905 (F.O. 50)
This consists of the original dispatches and reports from British diplomatic and consular representatives abroad, of correspondence with foreign missions in England, of miscellaneous correspondence with individuals, and the drafts or copies of letters sent from the Office.
The Center holds an incomplete set, covering volumes: 78-142, 218-303, 314, 326, 355, 377, 382, 390, 399, 410, 416-417, 422, 442, 448-451, 454, 459, 461, 473, 476, 481, 495-501, 507, 512, 520-523, 530-531, 540, 546, 548.