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Vol. XLIV. A Plate to illustrate’ Mr. Hume's Gazometer and 4 Blows 
pipe; a Proposal for an Improvement of the Galvanic Trough ; and af 
-/ Rew Apparatus for preparing pure Muriatic Acid.-A ipractical: Diagram y 
for obtaining the Lunar Distances observed by a ‘Sextant.—Electricalii, 
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Cuticle of Leaves.—Brunton’s Patent Chain Cable.—Figures relative to 
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