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The chemical nature of the alpha particles from radioactive substances ⠃⠗⠋ braille edition

Grade 2 — contracted English braille (EBAE-compatible subset). Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 1 instead.

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26,493 braille cells · 28 embossed pages at 40×25 · 188 unrepresentable characters omitted

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