system of heating and ventilation is very superior. The heating and ventilating apparatus, instead of sending forth alternate blasts of hot and cold air, keeps up a uniform and easily regulated temperature. A draught of cold air is continually forced through a large apparatus of steam-pipes, and, as it becomes vitiated in the rooms above, passes out through ventilators placed just below the ceiling. Our next visit was to the laundry, where two men, three women, and, last but not least, a steam-engine of 45-horse power, were perpetually engaged in washing the soiled linen of the hospital. The large and rapidly-moving cylinder which churns the linen is a common part of a steam laundry, but the wringing machine is one of the most beautiful practical applications of a principle in natural philosophy that I ever saw. It consists of a large perforated cylinder, open at the top, with a case in the centre. This cylinder performs from 400 to 700 revolutions in a minute, and, by the power of the centrifugal force thus produced, the linen is impelled so violently against the sides, that the moisture is forced through the perforations, when the linen is left nearly dry.
Strange as it may appear to those who associate America with plenty and comfort, there is a very large class of persons at New York living in a state of squalid and abject poverty; and in order that the children belonging to it may receive some education, it has been found necessary by the benevolent to supplement the common school system with ragged or industrial schools. In order not to wound the pride of parents who are not too proud to receive a gratuitous education for their offspring, these
