Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 420
A … rangular, or square, or oblong (0, D). Por intermediate thickw ■ between cement-cells and glass ring-cells, the Kditor has found nokind more convenient than the rings stamped out of tin, of rariouthicknesses. These, after being cemented to the slides, should havetheir surfaces made perfectly flat…
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