Note *** — Letter IV
Reading edition
‘Firestone is full of salts, and has no sulphur: must be close grained, and have no interstices. Nothing supports fire like salts; saltstone perishes exposed to wet and frost.’ Plot’s Staff., p. 152.
Reading edition
‘Firestone is full of salts, and has no sulphur: must be close grained, and have no interstices. Nothing supports fire like salts; saltstone perishes exposed to wet and frost.’ Plot’s Staff., p. 152.