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■lessor of .Chemistry at University College, London. 2nd edition, 

 entirely revised and greatly enlarged, copiously illustrated with 

 wood-cuts. Vol. L 1850. $o 00. '%A 



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K^EMTz. A Com])lete Course of Meteorology. With Additions, 



Walker. 1 vol. post Svo. pp. 624, with 15 platefe, cloth 



1845. • S3 



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KxAPP. Chemical Technology, or Chemistry applied to the 

 Arts and to Manufactures. . Wiih numerous Additions, hy Dr. E. 

 Ronalds, and Dr. Thomas Richardson. With 600 large Wood- 



cuts, 2 vols. Svo. London, 1848-1850. $8 00. 



Mitchell. J. M 



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g, intended for the 



of Gold and Silver the precise amount, in Oifnces, Pennyweights 

 j^ and Grains, of noble metal contained in one ton of Ore from a 

 given quantity. 1 vol. post Svo. London, 1846. $3 00. 



'■ Treatise on the Adulterations of Food, and the 



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CoiTee, Tea, Chocolate, Sugar, Honey, Lozenges, Cheese, Vine- 

 gar, Pickles, Anchovy Sauce and Paste, Catsup, Olive (Salad) 

 Oil, Pepper, Mustard. 12mo. London, 1848. %\ 50. 



MuLLER. Principles of Physics and Meteorology. By J. Mnller, 

 M.D. Illustrated with 530 wood-cuts, and 2 colored Plates, Svo. 

 London, 1847. $4 00. 



NicnoL, Professor. Our Planetary System, its Order and 

 Pliysical Structure. 12qio. With wood-cuts. London, 1850. 



$1 75. 



QuEKETT, J. Practical Treatise on the Use of the Microscope. 

 Ilhistrated with Steel and Wood Engravings. Svo. London, 

 1848. 2nd edit., London, 1851. 



Thomsov, Thomas. Chemistry of Organic Bodies — Vegeta- 

 bles. 1 large vol. Svo, pp. 1092, boards, London, 1838. $6 00. 



Heat and Electricity. 2nd edition, 1 vol. Svo. 



Illustrated with wood-cuts. London, 1839. $4 00. 



Weisbach, J. Principles of the Mechanics of Machinery and 

 Engineering. 2 vols. Svo. lUnstrated with 900 Wood Engrav- 

 ings. London, 1848. %1 50. 



Familiar Letters on Chemistry in its relations to Physiology, 

 Dietetics, Agriculture, Commerce, by Justus von Liebig. 3rd 

 edit., much enlarged. London, 1851. $175. 



MuLLER. Manuel de Physiologic, Iraduit de I'Allemand sur la 

 derniere edition avec des additions par A. J. L. Jodhdan. Deux- 



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