DescriptionPMMA-chain.png Description: Skeletal formula of a short length of a polymethyl methacrylate chain (Perspex, (C5O2H8)n). Author, date of creation:...
NEERING 'HE png! AND QURNAL ' MINING J ——— NEW YORK, SATURDAY, FEBRUARY 6, 1875. Vou. XIX.—No. 6. I’ricE 10 Cents PER Copy, —$——$—— Metal and Mineral...
