Hay ford's Text-book of Geodetic Astronomy 8vo. 



Michie and Harlow's Practical Astronomy 8vo, $3 00 



White's Theoretical and Descriptive Astronomy 12rno, 2 00 



BOTANY. 



GARDENING FOR LADIES, ETC. 



Baldwin's Orchids of New England 8vo, 1 50 



London's Gardening for Ladies. (Downing.) 12mo, 1 50 



Thome's Structural Botany 18mo, 2 25 



We^termaier's General Botany. (Schneider.) 8vo, 2 00 



BRIDGES, ROOFS, Etc. 



CANTILEVER DRAW HIGHWAY SUSPENSION. 

 (See also ENGINEERING, p. 6. ) 



Boiler's Highway Bridges 8vo, 2 00 



* " The Thames River Bridge 4to, paper, 5 00 



Burr's Stresses in Bridges 8vo, 3 50 



Crehore's Mechanics of the Girder 8vo, 5 00 



Dredge's Thames Bridges 7 parts, per part, 1 25 



Du Bois's Stresses in Framed Structures 4to, 10 00 



Foster's Wooden Trestle Bridges 4to, 5 00 



Greene's Arches in Wood, etc 8vo, 2 50 



Bridge Trusses 8vo, 250 



Roof Trusses 8vo, 125 



Howe's Treatise on Arches 8vo, 4 00 



Johnson's Modern Framed Structures 4to, 10 00 



Merriman & Jacoby's Text-book of Roofs and Bridges. 



Part I., Stresses 8vo, 250 



Merriman & Jacoby's Text-book of Roofs and Bridges. 



Part II.. Graphic Statics 8vo, 2 50 



Merriman & Jacoby's Text-book of Roofs and Bridges. 



Part III., Bridge Design 8vo, 2 50 



Merriman & Jacoby's Text- book of Roofs and Bridges. 



Part IV., Continuous, Draw, Cantilever, Suspension, and 



Arched Bridges 8vo, 2 50 



* Morison's The Memphis Bridge Oblong 4to, 10 00 



4 



