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Title: Sulphur in various stages:- (1) ribbed; (2) oil coated; (3) [Go to resource]
Description: Sulphur in various stages:- (1) ribbed; (2) oil coated; (3) granulated; (4) powdered; (5) lumps; (6) magnesium carbonate coated License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1987-544 Go to resource More Like this...
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