Page:On the economy of machinery and manufactures - Babbage - 1846.djvu/201

Rh Metallic Arsenic cost 1l. 4s. per cwt. Arsenic worth 1l. when manufactured into

The price of Cast-Iron was 8s. per cwt. Cast-Iron worth 1l. when manufactured into

Bar-Iron cost 1l. 6s. per cwt. Bar-Iron worth 1l. when manufactured into