HAND-BOOK OF WASHINGTON. 45 may be examined by strangers, on application, during office hours. The Treasury Department stands at the east ern extremity of the President’s Square, (so called) and is a stone edifice, painted white, 340 feet long and 170 wide, but when the northern and southern wings are added it will be 457 feet in length. In front is an imposing colonnade, stretching the entire length of the building, and the architect of the whole was Robert Mills. It has three floors upon which business is transacted, on each of which are nearly fifty apartments. This is the department where all the financial and commercial affairs of the country are attended to, and the amount of labor performed here at times is immense. The persons employed in this de partment are the Secretary, one Assistant Secre tary, two Comptrollers, six Auditors, two Trea surers, one Register, one Solicitor, one Commis sioner of Customs, about three hundred clerks, fifteen messengers, and twelve watchmen. A good legal library is attached to ihis department. An extensive addition to this already large build ing is now in course of erection, and it is only to be regretted that such a costly and imposing building should not have attached to it appropri ate grounds.