HENRY CAREY BAIRD'S PUBLICATIONS. 



Turnhull — A Treatise on Experimental 



Electricity. 

 By Lawrence Turnbull, M.D. 12mo. (In press.) 



Turner's Companion: 



Containing Instructions in Concentric, Elliptic, and Eccentric 

 Turning. Also, various Plates of Chucks, Tools, and In- 

 struments, and Directions for using the Eccentric Cutter, 

 Drill, Vertical Cutter, and Circular Rest ; with Patterns 

 and Instructions for working them. Illustrated with nume- 

 rous Engravings. In one volume, 12mo 75 cts. 



A valuable little book, beautifully and completely illustrated. 



Walker — Electrotype Manipulation. 



Being the Theory and Plain Instructions in the Art of Working 

 in Metals, by Precipitating them from their Solutions, 

 through the agency of Galvanic or Voltaic Electricity ; also 

 in the Arts of Electro-Plating, Electro-Gilding, and Elec- 

 tro-Etching; with an Account of the Mode of Depositing 

 Metallic Oxides, and of the several applications of Electro- 

 type in the Arts. By Charles V. Walker, Hon. Sec. of 

 the London Electrical Society, &c. Illustrated. New edi- 

 tion, from the Twenty-fifth London edition. 12mo...75 cts. 



The rapid sale in England of t-wenty-five editions, and the demand in this 

 country render necessary no further guarantee of the value of this book, rof 

 popular use it surpasses aU other treatises on the subject 



Walter & Smith — Cottage and Villa Ar- 

 chitecture : 



With Ground-plans and Elevations. By Thomas U. Walter, 

 Architect of Girard College, and John Jay Smith, Phila- 

 delphia Library. In two volumes, quarto $5.00 



Walter & SmitKs Guide to Workers in 



Metal and Stone. 



Consisting of Designs and Patterns for Gates, Piers, Balcony 



and Cemetery Railing, Window Guards, Balustrades, Stair- ^. 

 cases, Candelabras, &c. &c. Four parts, cuarto. Illus- 

 trated by large Drawings :.. $10:00 



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