The Acting Secretary of State to Ambassador Thompson.
Washington, December 15, 1906.
Do not commit Government of United States to acceptance of proposed arrangement for regulation of transit of merchandise from port to port of either country through territory of the other.
Treasury does not think that acceptance by this Government of such measures as Mexico may enact for transit of goods from port to port in Mexico through the United States, under section 3005, Revised Statutes, as amended, should be made condition precedent to adoption by Mexico of regulations proposed by this Government under section 3006. Any modification of American regulations which Mexico shall at any time propose will have due consideration by this Government; but we should not be committed to acceptance of any changes without knowledge of what they are. Instruction 167 on way to you explains.