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2444 LAPLACE (Pierre Simon Marquis de) M^CANIQUE CELESTE, translated, with 

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2451 LABDEN (W.) ELECTRICITY for PUBLIC SCHOOLS and COLLEGES, illustrated, or. 8vo. cl., 3s 

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2454 HAND-BOOK of ASTRONOMY, with 37 plates and over 200 woodcuts, 2 vols. post 8vo. 



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2468 LA RUE (Warren de, F.R.S.) On the TOTAL SOLAR ECLIPSE of JULY 1STH, 1860, observed at 

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9 * 



