A Dual-purpose Mammoth Major

A N Ac (A.E.C.) Mammoth Major, which can be used for semi-trailer work or for vehicle recovery duties, formed a recent delivery to a Brazilian operator by Wilson, Sons and Co.,......

A New Electric Refuse Collector

A MANULECTRIC I-ton pedestrianPi controlled battery electric refuse collector constructed throughout ef . light alloy and weighing under 8 cwt. in licensing condition, is now......

Ventilation Of Welding Shops

ENER A L recommendations co n cerning the ventilation of premises where welding is done are given in "The Health of Welders" by A. T. Doig and L. N. Duguid, published by the......