Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 528
deld to the chemical action of the thebod>;fluid in which it may be desirable to immerse it. Nicholsons Hydrometer consists of a hollow metallic ball NicholsonsA, through the centre of which passes a metallic wire, h>drometerprolonged in both directions beyond the surface, and sup-porting at… … 524 NATURAL PHILOSOPHY. description, andconditions theinstrument mustsatisfy* of these basins are turned in the Fig- 312- same direction, and the basin B ismade so heavy that when the in-strument is placed in water thestem GC shall be vertical, and aweight of 500 grains being placedin the basin B,…
Mechanics · Acoustics · Optics
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