Primary and Intermediate Department, on first floor.
Size, 36 by 64 feet.Scale, 12 feet to the inch.
A, entrance for boys to the High School. C, entrance for girls to the High School. P, entrance for boys to the Primary and Intermediate Departments. Q, entrance for girls to the same. D D, doors. W W, windows. T, teacher's platform and desk. G H, desk and seat for two scholars, a section of which is represented at X, in the Primary Department. I I, recitation seats. B B, black-boards. S S, stoves, with air-tubes beneath. c v, chimney and ventilator. R, room for recitation library, apparatus, and other purposes.
High School, or Third Department, on second floor.
A, entrance for the boys, through the entry below. C, entrance for the girls. G H, desk and seat: aisles from two to three feet wide. D D, doors. W W, windows. S S, stoves. c v, chimney and ventilator. T, teacher's platform. R, recitation-room. I I, recitation seats in principal room. B B, black-board: as a substitute for the common painted board, a portion of the wall, covered with hard finish, may be painted black; or, what is better, the hard finish itself may be colored before it is put on, by mixing with it lamp-black, wet up with alcohol or sour beer.
Ventilation of School-houses.—We have already seen that in a school-room occupied by forty-five persons, thirty-two thousand four hundred cubic inches of air impart their entire vitality to support animal life the first minute, and, mingling with the atmosphere of the room, proportionably deteriorate the whole mass; that the air of crowded school-rooms thus soon becomes entirely unfit for respiration, and that, as the necessary result, the health of both teacher and scholars is endangered; that the scholars gradually lose both the desire and the ability to study, and become more inclined to be disorderly, while the teacher becomes continually more unfit either to teach or govern. Hence the necessity of frequent and thorough ventilation.