. Hardware merchandising (January-March 1908) . ssible, con-nected with a flue of ample size andkept at a temperature higher than thatof the surrounding air, unless mechan-ical circulation is used, when the na-tural pressure will keep up the neces-sary circulation. The extraction of impure air by fanshas many advantages, as, when theyare used as the extracting forces, thedraft is very easily regulated simply byaltering the speed at which the fan isdriven. In passing through the aisles of alarge manufacturing plant one does nothave to be a student of humanity toobserve the drawn, peaked faces o
. Hardware merchandising (January-March 1908) . ssible, con-nected with a flue of ample size andkept at a temperature higher than thatof the surrounding air, unless mechan-ical circulation is used, when the na-tural pressure will keep up the neces-sary circulation. The extraction of impure air by fanshas many advantages, as, when theyare used as the extracting forces, thedraft is very easily regulated simply byaltering the speed at which the fan isdriven. In passing through the aisles of alarge manufacturing plant one does nothave to be a student of humanity toobserve the drawn, peaked faces ofboys and girls who are operating themachinery, or doing piece a casual observer will attri-bute this condition to long hours, an-other to their work, and still anotherto diseases firmly implanted in the bo-dies of these workers. It may be onecause, or it may be another, but if thetrue facts were known, tne secret of thesuffering of these workers lies, manytimes, in the poor ventilation and thelack of sunlight in the factory room.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectimplementsutensilset
