in aid of library work, particularly printing and electricity. The introduction of photography would be but a further development of the same principle; and although much consideration and discussion will evidently be necessary, I am not without hope that Mr. Bond, who has brought print into the catalogue and electricity into the Reading Room, may make the sun-crowned nymph, now an inmate who charges for her lodging instead of paying for it, a daughter of the house. Many questions will arise which only experience can solve. The work which the institution does for itself and that which it does for others must not be allowed to get into each other's way, and the adjustment of the scale of charges will require serious consideration. On the one hand, the very essence of the scheme is to reduce the cost of photography for literary or educational purposes to a minimum; and high prices would evidently be extortionate when the main elements of cost had been suppressed. On the other hand, the bona fides of customers must be guaranteed; and the Treasury will scarcely help unless the obligation to recoup it as far as possible is acknowledged and acted upon. The best principle, I apprehend, would be to proportion charges as nearly as possible to the expenditure of material—a variable quantity, depending upon the amount of work done—and to look upon the salaries of the photographic officer and his assistants as expenses to be covered as far as possible—but with which the State is not bound to concern itself more than with the salaries of other literary and
