Carpenter, William Benjamin, 1813-1885 · London : John Churchill · leaf 171
ion, is almost indispensable. Yariousplans of construction have been proposed; but none amongthem appears to the Author to present so many advan-tages as the one represented ui Fig. 50, the general plan ofwhich was originally devised by Schick of Berlin, but thedetails of which have been modified… … Compressorium, and 4 inches long, and from \\ to 1^ inch broad, having acentral aperture of from \ to f of an inch. This_ centralapertui-e is covered on its upper side by a disk ot thin glass,which may be cemented to the brass plate by Canada balsam;and the under side of it is bevelled-away, so…
Microscopy
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