Franklin's advocacy of vegetarianism, of sparing and simple diet, and of temperance in the use of liquors, and of proper ventilation has already been referred to.
When a number of specimens have to be submitted to pressure, ventilation is secured by means of frames corresponding in size to the drying paper, and composed of strips of wood or wires.
Keep up moderate temperatures in the stove, and merely repel frosts in the greenhouse, guarding against damp, by ventilation and by the cautious use of water.
Natural ventilation is impracticable in flat deposits worked by drifts and without shafts.
Wooden guides being of considerable size, block up a certain portion of the area of the pit, and thus offer an impediment to the ventilation, especially in upcast shafts, where the high temperature, when furnace ventilation is used, is also against their use.
The latter includes not only the actual excavation of the mineral, but also haulage and hoisting by which it is brought to the surface, timbering and other means of supporting the excavations, and the drainage and ventilation of mines.
The ventilation of ends is effected by means of brattices or temporary partitions of thin boards placed midway in the drift, and extending to within a few feet of the face.
Mechanical ventilation may be effected either by direct exhaustion or centrifugal displacement of the air to be removed.
In this house the principal part of the roof is a fixture, ventilation being provided for by small lifting sashes against the back wall, and by the upright front sashes being hung on a pivot so as to swing outwards on the lower side.
Where any part of the country appears to be threatened with or is affected by any formidable epidemic, endemic or infectious disease, the Local Government Board may make regula tions for the speedy interment of the dead, house-tohouse visitation, the provision of medical aid and accommodation, the promotion of cleansing, ventilation and disinfection, and the guarding against the spread of disease.