Undated but circa 1950. 220pp, illustrated with work formulae, diagrams, etc. In beige cloth covers with black decoration and lettering (gently worn, short crack in cloth on front spine fold, lightly soiled, creased). Previous owner's name on lightly spotted front free endpaper. Outlines a series of simple and interesting experiments in practical mechanics suitable for those in their first three years of study of the subject. 12mo
