Offprint of ‘Prehnitization in the Yahgan Formation of Navarino Island, southernmost Chile’ by W.A. Watters, New Zealand Geological Survey, Lower Hutt, New Zealand. Preprinted from the Mineralogical Magazine, London 1965, Vol. 34, No. 268, pp. 517-527.
‘With kindest regards from W.A. Watters’ is hand written in the top right hand corner.