Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 182
s becomes so immobilein most of its parts by the hardening of its normal lubricant thatmotion becomes a peril to its future if persisted in in that condition. If a coarse adjustment be what it should be, all lower powersshould be exclusively and perfectly focussed by it, and with thehighest powers… … SWIFT Fig. 119.— Stepped diagonal rack-work for coarse adjustment. ^§1
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