Lynde, Carleton John, b. 1872 · New York, Macmillan · leaf 258
WIRELESS TELEGRAPH 243 veloped shows the outline of the hand and of the bones of thehand. The bones are denser than the flesh, and the X rayspenetrate them less readily; therefore the outline of the boneson the negative is lighter than that of the flesh. A pictureprinted from this negative shows…
Physics · Home Economics
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