Report of committee on sanitation of the School committee . ble stovesare used it is evident that the slower rate of combustion isattended with a relatively greater economy of combustion 18 ANNUAL REPORT OF THE than where one stove must be forced to keep a school roomwarm. The results of practical experience and scientificinvestigation have shown that better conditions of heatingand ventilation exist in these schoolrooms than in anyother buildings in the city. To the extent that financial conditions permit, it ishoped that succeeding boards will cause its application tothe ventilation of other
Report of committee on sanitation of the School committee . ble stovesare used it is evident that the slower rate of combustion isattended with a relatively greater economy of combustion 18 ANNUAL REPORT OF THE than where one stove must be forced to keep a school roomwarm. The results of practical experience and scientificinvestigation have shown that better conditions of heatingand ventilation exist in these schoolrooms than in anyother buildings in the city. To the extent that financial conditions permit, it ishoped that succeeding boards will cause its application tothe ventilation of other school-buildings in the city. In the Centre Street Schoolhouse the whole cost of theheating and ventilating apparatus, including the changesin the old building necessary for the installation amountedto 11,, or per room. FLUSH VAULTS TO OUTBUILDINGS. The outbuildings connected with the schoolhouses havegenerally been noisome affairs, a nuisance to the neighbor-hood, and an outrage upon the refinement and decency ofthe pupils. Winch FlushTank. Ventilatoi ft PROFILE OF FLUSH VAULT Another trap is placednear the sewtr FIG. VIII. Some of these outbuildings have been supplied with akind of flush vault which in its present form originatedwith former Committees on Sanitation. The illustrations clearly show the present method ofconstructing these flush vaults, which are like those madeat first, with the exception of slight modifications resultingfrom experience. SCHOOL COMMITTEE. 19 The vault is built of hard bricks laid in cement, and isabout three feet in width and five feet in depth, thebottom being an inverted arch, and the whole sloping one-half inch to the foot towards the discharge into the flush-tank variesslightly according to circumstances,the most convenient dimensions usually being in insidemeasurements, three feet nine inches long, one foot teninches wide, and holding water to the depth of four feetthus having a capacity of 206 gallons. At the botto
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