Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 329
rass, rather shorterthan the trough, butabout the same width ;it lias an opening formedin it to correspond withthat in the trough, andunder this opening iscemented a piece of cover-glass. The cover plate is notched at the-two bottom cornels, and at the two top corners are formed acouple of… … Fig. 2(52. EXAMINING INFUSi >KIA 299 to be examined is then placed in the cell, and may be properlyarranged therein ; the cover is then lowered gently down, the twonotches at the bottom edges being lirst placed against the pins : in tinsWay the superfluous water will be driven out and the whole…
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