reatest amount of gas light at The lower part of the picture is occupied by a view of a shaft may be raised. The saws are placed upon the shaft at least cost, the following rules should be remembered: 1. A good number of the principal buildings erected by the different a distance apart of three and… … sired, or as the character of the land to be operated upon Weekly. poor one will, the quantity of gas burnt being equal. 2. m *•¥ m may require. To the center of the bail, attached to the saw W^indow Ventilation. The intensity of the light increases with, but in a greater shaft,is pivoted the end…
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