Conferences with Lincoln.
Washington, April 21
--Gov. Hicks and Mayor Brown arrived here this forenoon, by special train from Baltimore.
They proceeded to the Executive Mansion.
Reverdy Johnson, of Maryland, arrived in Washington on Saturday evening; reports that it is entirely out of the question to attempt to force troops through Baltimore.
Hon. H. Winter Davis, in Washington on Saturday, concurs in the statement that no more troops can pass through Baltimore.