The Distribution of Blue-Violet Light in the Solar Corona on August 30, 1905, as Derived from Photographs Taken at Kalaa-es-Senam, Tunisia . 208 43 *7 (Figures in first line = exposure; in second line = ratio of focal-length and equivalent diameter of lens.) \ • j] i b 1 ?Vf 1 1 M = T^H^^^^™ MSn ^^^^^^—1 ^—Mm** — ii mmm / j] ? ^^™ V Fig. 1. NINE AUTOMATIC EXPOSURES ON ONE PLATE.

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Keywords: ., bookaut, bookcentury1900, bookdecade1900, bookidphiltrans01200638