A system of natural philosophy, designed for the use of schools and academies (1845)
Moffat, J[ohn] M. [from old catalog] · Philadelphia, E. C. Biddle · leaf 166
utation;or they may be weighed in water after being defended from itsaction by coating them thinly with melted bees-wax. What are some of the methods of determining the specific gravity ofbodies ? What is the construction of the hydrostatic balance, and how is it ap-plied to this purpose ? What… … 112. The most usual and convenient method ofascertaining the specific gravities of liquids is bymeans of a hydrometer. This instrument, as re-presented in the margin, consists of a hollow glassball B, with a smaller ball of metal C, appendedto it, and which, from its superior weight, servesto keep…
Physics
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Rudiments of the art of building : represented in five sections [...] for the use of architects, builders, draghtsmen, machinists, engineers and mechanics (1853)](https://img.insideoutlibrary.com/img/200/ia-rudimentsofartof00bull-108-54.webp)
