Well's natural philosophy : for the use of schools, academies and privte students, introducing the latest results of scientific discovery and research ; arranged with special reference to the practical application of physical science to the arts and the experiences of everyday life ; with three hundred and seventy-five engravings (1873)
Wells, David A · New York : Ivison, Blakeman, Taylor and Co. · leaf 366
d ratch-woik,D, sustains a double-convex lens, A.The object to be viewed is placedupon a piece of glass, C, upon a stand-ard, B, immediately below the lens.As it is desirable that the object tobe magnified should be stronglyilluminated, a concave mirror of glass,M, is placed at the base of the… … 362 WELLSS NATURAL PHILOSOPHY. simple form, consists of two lenses, so arranged thatthe second lens magnifies the image formed by the firstlens, or simple microscope. In this way the image ofthe object is examined by the eye, and not the objectitself. The first of these lenses is called the…
Physics · Science · Technology
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