64 resultados para Amount of light
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Mode of access: Internet.
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Shipping list no.: 93-169-P.
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Bibliography: leaf 18.
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"Furnished to subscribers only."
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Mode of access: Internet.
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At head of title: London County Council.
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Subtitle varies slightly.
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WI docs. no.: EMP 1.3/2:90.1-90.2
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Reprinted from Journal of the Optical Society of America and Review of scientific instruments, VI, January, 1922.
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"Reprint no. 2541 from the Public health reports, Vol. 59, no.7. February 18, pages 221-233."
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Mode of access: Internet.
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Papers no. 23, 442, 634 signed: Geo. Hatchell.