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Spencer's Handbook for Chemists of Beet-sugar Houses. 



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100 copies for 5 00 



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10 copies for 2 00- 

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Small 8vo, 1 50 



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Rice and Johnson's Elementary Treatise on the Differential 



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Differential and Integral Calculus. 2 vols. 



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Wood's Elements of Co-ordinate Geometry 8vo, 2 00 



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11 



