Historic Hudson has weighed in with its opposition to demolishing 900 Columbia Street. There's a letter to the editor, signed by all the members of the Historic Hudson board, in today's Register-Star: "Save 900 Columbia." In the meantime, as of this morning, the petition has 366 signatures, but more are needed. There are six days left to sign. The petition is scheduled to go to the Mental Health Association on Friday, March 11.