n, of
course it was bruited about that we were going to invade Mexico.
Then, escorted by a regiment of horse I proceeded hastily to Fort
Duncan, on the Rio Grande just opposite the Mexican town of Piedras
Negras. Here I opened communication with President Juarez, through
one of his staff, taking care not to do this in the dark, and the
news, spreading like wildfire, the greatest significance was ascribed
to my action, it being reported most positively and with many
specific details that I was only awaiting the arrival of the troops,
then under marching orders at San Antonio, to cross the Rio Grande in
behalf of the Liberal cause.

Ample corroboration of the reports then circulated was found in my
inquiries regarding the quantity of forage we could depend upon
getting in Mexico, our arrangements for its purchase, and my sending
a pontoon train to Brownsville, together with which was cited the
renewed activity of the troops along the lower Rio Grande. These
reports and demonstrations resulted in alarming the Imperialists so
much that they withdrew the French and Austrian soldiers from
Matamoras, and practically abandoned the whole of northern Mexico as
far down as Monterey, with the exception of Matamoras, where General
Mejia continued to hang on with a garrison of renegade Mexicans.

The abandonment of so much territory in northern Mexico encouraged
General Escobedo and other Liberal leaders to such a degree that they
collected a considerable army of their followers at Comargo, Mier,
and other points. At the same time that unknown quantity, Cortinas,
suspended his free-booting for the nonce, and stoutly harassing
Matamoras, succeeded in keeping its Imperial garrison within the
fortifications. Thus countenanced and stimulated, and largely
supplied with arms and ammunition, which we left at convenient places
on our side of the river to fall into their hands, the Liberals,
under General Escobedo--a man of much force of character--were
enabled in northern Mexico to place the affairs of the Republic on a
substantial basis.

But in the midst of what bade fair to cause a final withdrawal of the
foreigners, we were again checked by our Government, as a result of
representations of the French Minister at Washington. In October, he
wrote to Mr. Seward that the United States troops on the Rio Grande
were acting "in exact opposition to the repeated assurances Your
Excellency has given me concerning the desire of the Cabinet