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Scientific American, Vol. 67, No. 18 (1892) (1892)
leaf 5
hether cholera can be produced by animal organic its rigidity and make it brush-like at the very point. mensions, 10 by 12 inches, distant also from each other matters not of a specific nature has not yet been Often the foreign body is so minute as to be undiscov- in the length of the track of 7… … eannot be remov- Oxygen (consumed in 15 mins)... ........ 0°065 we that, from this mode of construction, each lineal foot MAGNIFYING GLASS AND PLANE ed in either of ‘© (consumed in 4 hours)............- 0°24 te of track corresponds to at least twenty-five square feet MIRROR USED AS A SUBSTITUTE…Internet Archive · Public domain (published before 1931). Free to use for anything.
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