“…Our findings of normal serum calcium, phosphorous, acid and alkaline phosphatase agree with the findings of Kilburn [12], Clark [7], Barton and Reeves [3], Plitman and Gendel [17] and El Hefnawi [8], The tissue contained mostly calcium phosphate and a little calcium carbonate. The same has been reported by Maloney and Bloom [15], Atkinson and Weber [2], El Hefnawi [8] and Thompson et al [19], The interesting finding in our series, which was not reported so far, is the increased activity of acid phosphatase in the calcified areas.…”