ress from time to time, by the same private secretary, such messages
as a proper discharge of my constitutional duty appeared to me to
require. On Tuesday last he was charged with the delivery of a message
to each House. Having presented that which was intended for the House of
Representatives, whilst he was passing, within the Capitol, from their
Hall to the Chamber of the Senate, for the purpose of delivering the
other message, he was waylaid and assaulted in the Rotunda by a person,
in the presence of a member of the House, who interposed and separated
the parties.

I have thought it my duty to communicate this occurrence to Congress, to
whose wisdom it belongs to consider whether it is of a nature requiring
from them any animadversion, and also whether any further laws or
regulations are necessary to insure security in the official intercourse
between the President and Congress, and to prevent disorders within the
Capitol itself.

In the deliberations of Congress upon this subject it is neither
expected nor desired that any consequence shall be attached to the
private relation in which my secretary stands to me.

John Quincy Adams.

Washington,
_April 21, 1828_.

_To the Senate of the United States_:

I transmit to the Senate, for their consideration and advice, a treaty
of limits between the United States of America and the United Mexican
States, concluded by the plenipotentiaries of the two Governments on the
12th of January last. A copy of the treaty and the protocols of
conference between the plenipotentiaries during the negotiation are
inclosed with it.

John Quincy Adams.

Washington,
_April 22,1828_.

_To the House of Representatives of the United States_:

A copy of the opinion of the Attorney-General, dated 17th May, 1826,
upon the construction of the award of the Emperor of Russia under the
treaty of Ghent and upon certain questions propounded to him in relation
thereto, subjoined to a report from the Secretary of State, are herewith
communicated to the House, in compliance with their resolution of the
17th instant.

John Quincy Adams.

Washington,
_April 24, 1828_.

_To the Senate of the United States_:

I transmit to the Senate, for the exercise of their constitutional
authority thereon, a treaty of amity, commerce, and navigation between
the United States of America and the United Mexican States, signed by
their respective plenipotentiaries on the 14th of Fe