Journal of the Franklin Institute, Volume 252

Front Cover
Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-1859. cf. Index to v. 1-120 of the Journal, p. [415]

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Interflectance Calculations for Various Luminaires
The Effect of Gradual Light Absorption in a Film of NonNegligible Thickness
Solutions of Some Partial Differential Equations with Tables LOUIS WEINBERG

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