From Charleston.
Charleston, Jan. 3.
--A number of free negroes and slaves are engaged in erecting redoubts in the harbor.
Benj. Mordecai yesterday gave the State $10,000.
The steamer Nashville had much difficulty in getting out of the harbor yesterday, on account of the fog. The channel buoys have been removed.
The operations in the telegraph office were restricted by the State authorities, for some hours prior to 10 o'clock P. M., Dec. 31st.
In the Convention, today, a resolution was offered and tabled, allowing citizens of the United States, outside of South Carolina, to hold property within the limits of the State.
Mr. Dunkin, from the Committee on Commercial Relations, presented a report.
A communication was received from the Governor, in relation to the Assistant Treasurer of the United States.
The Convention then went into secret session, it is supposed to consider the question of adjournment, and the appointment of delegates to the Southern Convention.
[Second Dispatch.]
Charleston, Jan. 3.
--A large number of whites and negroes are employed in erecting redoubts along the coast. 