600 PROCEEDINGS OP SECTION I. 



Ventilation in the class-room depends on change of tempera- 

 ture, wind, and diffusion. 



Excellent results can be brought about by the proper construc- 

 tion, position, and use of windows. A casement window with an 

 upper fanlight is most preferable. It can be adjusted to catch the 

 breeze, and the fanlight above is useful for the escape of hot, 

 vitiated air. 



The ordinary box window with pulley sashes is good; the upper 

 and lower sashes can be opened for the admission of fresh, and the 

 exit of impure air. The addition of a hopper or wind-board to 

 the inner sill is a great improvement. The hinged pivot windows 

 are bad; they allow of the entrance of rain, and blinds cannot be 

 properly adjusted to them. 



In all cases there should be cross ventilation by the presence of 

 windows in the riglit wall. The windows should reach down only 

 to such a level as to insure no child being in a draught. This 

 level would be about 5 feet from the ground. 



I do not believe in the ventilating shafts in the ceiling, which 

 are supposed to act by aspiration. Rain and dust are liable to 

 enter, and if not wired over the cowl forms a roosting place for 

 birds, with its accompanying nuisance. 



In a room of the size and shape suggested, there is sufficient 

 ventilation when the windows are opposite and adjusted to the 

 state of the weather. 



Natural light comes from above, therefore the ceiling should 

 always be painted white, and thus reflect and diffuse the light 

 from above down. 



The walls should be coloured in shades of light green or blue. 



Picture rails should be flush with the walls, and be provided 

 with hooks or nails. 



The walls should be smooth; all angles of wall and ceiling, wall 

 and wall, and wall and floor, rounded to insure proper cleaning. 

 The window frames and architraves should also be flush into the 

 walls; there should be no projection. The flooring boards should 

 be properly tongued and grooved to prevent the accumulation of 

 dust. 



The walls should be decorated with artistic and cheerful pic- 

 tures; those obtained from the Christmas numbers of certain week- 

 lies and annuals are excellent. 



All diagrams and maps should be fixed up with spring rollers 

 on a light portable frame with good castors. 



