It is hereby ordered that hereafter no Caveat be placed in the Secret Archives of this Office, unless accompanied by an oath of citizenship and originality of invention. CHAS. MASON, Commissioner. Patent Office. July 6, 1853. [inventors will perceive that the above is a new course of action adopted by the present Commissioner of Patents. This policy will, no doubt, meet with the approval of all honest inventors : we approve of it as a just and right measure.