"The simple and earnest style of Count Rumford's essays, the substantial nature of his acknowledged improvement, the facility with which it could be tested, and the enthusiasm with which he urges its importance, the detailed directions he gives for the guidance of the builder, and the liberality with which he offered the free use of his invention and services to the public,—all tended to make a permanent impression, and not only to give the precedence over all others, but even to place the latter altogether in the shade. So much [so] that, though infinitely more important as tending to improve the ventilation of the apartment and the draught of chimney, as well as to save the waste heat of the fuel, they were almost forgotten, and, so far as the mass of the public is concerned, remain so... to the present..."