“…He, in common with Shanklin (1958 and 1959), also found no evidence of increased calcification in association with pre-eclampsia. Some workers (Mischel, 1958;Einbrodt, Geller andBorn, 1962 andJeacock, 1963) have, on the basis of chemical analysis reported increased levels of calcium in the toxaemic placenta, while Ritala (1946) found a reduction.…”