Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 311
PERIMENTAL SCIENCE. upward through the stopper, is used for concentrating thematerial. Over the lower end of this funnel is stretched apiece of thin muslin, and to the upper end is applied a shortpiece of rubber pipe, which is retained in a curved positionby a thread tied around the neck of the… … Implements for gathering Microscopic Objects. utility in cutting and fishing out parts of aquatic plants andsubmerged branches and roots, which are often teeming withmicroscopic life. It would be futile to attempt anything more than themere mention of a few of the interesting objects that may…
Physics · Lantern projection · Electric apparatus and appliances
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