FOOTNOTES:
[233] See Appendix, p. 417.
[234] Vide paper on "Basic Slag: Its Formation." By Stead and Ribsdale. 'Journal of the Iron and Steel Institute,' 1887, p. 230.
[235] Vide Professor Wagner's pamphlet, 'Der Düngewerth und die rationelle Verwendung der Thomas Schlacke,' Darmstadt, 1888.
[236] No. 1 fineness was such as passed entirely through a fine gauze sieve of 250 wires to the linear inch.
[237] No. 2 fineness was such as passed entirely through the regular standard sieve—i.e., containing 120 wires to the linear inch.
[238] No. 3 was what would not pass through the standard sieve.
[239] 'Transactions of the Highland and Agricultural Society,' 1891; 'Chemical News,' 1893.