January 2, 1891.] 



SCIENCE. 



LOW-PRICED BOOKS. 



Any of the following low-priced books will be 

 mailed postpaid on receipt of price. 



SCIENCE BOOK AGENCY, 



47 Lafayette Place, New York. 



AGRICULXTJBE. 



Agricultural Drainage. By J. B. Deaton. 8°. $1.20 

 Animal Food Resources of Different Nations. By 



P. L. Simmonds. 12° i.oo 



Armstrong's Agriculture. 18° -75 



British Wild-Flowers Considered in Relation to 



Insects. By Sir John Lubboclc 



Coffee and Chiccory. By P. h. Simmonds. 12°. 

 Diseases of Field and Garden Crops, cliiefly such 



as are caused by Fungi. By W. G. Smith. 



16° 



Flowf.rs, Fruits, and Leaves. By Sir John Lub- 



FLOWERS.The'Coiours'of." By Grant Alien!' 12° 



Fruits, Selected : Their Culture, Propagation, 

 and Management in the Garden and Orchard. 

 ByC.Downing. 12° 



Gardening for Ladies, and Companion to the 

 Flower-Garden. By Mrs. J. C. Loudon. 12°. 



Hops : Cultivation, Commerce, and Uses. By P. 

 L.Simmonds. 12° 



Horticulture, The Theory of ; or, An Attempt 

 to explain Gardening upon Physiological Prin- 

 ciples. By J. Lindley and A. J. Downing 



Sewage Irrigation by Farmers. By R. W. Birch. 



ARCHITECTtTRE AND BriIiOING 

 CONSTRBCTIOIV. 



Architecture, the Ptepping-Stone to. By 



Thomas Mitchell. iS° 



Boiler and Water Pipes, Kitchen. By H. Grim 



Building Construction. By Edward J. Burrell. 



Chimneys" for' Furnaies,"Fi"repiaces, and' Steam- 



Boilers. By R. Armstrong, C.E. 18° 



Cooking Range, The. By F. Dye. r2° 



Fires in Theatres. By E. M. Shaw. 12° 



Gas Fitter's Guide. By J. Eldndge. 12° 



Hot-Water Apparatus, Fitting. By F. Dye. 12° 

 Hot- Water Apparatus, Fixing. By J. Eldridge. 



Hot-Water Fitting a: 



ratus. By F. Dye. lO" 



Pump Fitter's Guide. By J. Eldridge. 

 Strength of Beams under Transverse Loads. 



Professor W. Alia 

 Ventil.ation of American Dwellings. By David 



Boswell Reid, M.D. 12° i 



Ventilation of Buildings. By W. F. Butler. 18° 



ASTRONOrar AND NAVIGATION. 



Astronomy, Lesions in Elementary. By R. A. 

 Proctor. S" 



Hours with a Three-Inch Telescope. By Capt. 

 William Noble. S". 



Magnetism and the D 

 By John Merrifield. 



Navigation, A Treatise on, for the Use of Stu- 

 dents. By John Merrifield. I2» 



Stu,dent's Atlas, The. By R. A. Proctor. 8° 



CHEMISTRY. 



Chemical Lecture Notes. By Peter T. Austen. 



Electro-Chemical Analysis. By Edgar F. Smith. 

 Stiid' 



Cooking Appa- 

 "By 



of the Compass, 



ts. 



Experiment.'^l Chemistry for J 

 By J. E. Reynolds. 



Part I. Introductory 



Part II. Non-Metals 



Part III. Metals 



Part IV. Chemistry of Carbon Compounds, 01 



Organic Chemistry 



Faraday's Chemistry of a Candle. 16° 



Organic Chemistry, Introduction to the Study of. 

 By Ariolph Pinner. Tr. and Rev. by Peter T. 



Practical Chemistry ; the Principles of Qualita- 

 tive Analysis. By William A. Tilden. 8° 



Practical Inorganic Chemistry, An Introduction 

 to ; or The Principles of Analysis. By William 

 Jago. 8°. 



Practical Organic Analysis, An Introduction to. 

 By George E. R. Ellis. S" 



Qualitative Analysis and Laboratory Practice, 

 Manual of. By T. E. Thorpe and M. M. Pat- 



iMu 



cal Analysis, A Short Course 

 in. By Professor I. M. Crafts and Professor 

 Charles A. Schaeffer. 12° 



Qualitative Chemical Analysis. An Elementary 

 Manual of. By Maurice Perkins. 12° 



Quantitative Analysis. By H. Carrington Bol- 



Quantitative Chemical Analysis. By T. E. 



Thorpe. 18** 



Tables for the Analysis of a Simple Salt for Use 



in School Laboratories. By A. Vinter. 8° 



EDUCATION. 



British and American Education. By Ulayo W. 



Hazeltine, 32° $0.: 



Culture of the Observing Faculties. By Rev. 



Warren Burton. 16° 



Library, 1 he. By A. Lang. With a Chapter on 



Modern Illustrated Books, by Austin Dobson. i. 



Mahaffy's Old Greek Education. 16° 



Manchester Science Lectures for the People 



Overpressure in High Schools in Denmark. By 



Dr. Hertel i.^ 



Seeing and Thinking. By W. K. Clifford i.^ 



Spelling Reform from an Educational Point of 



View. By J. H. Gladstone 



EliECTRICITY. 



Alternate Current Machinery. By G. Kapp. 



Chemistry of the Secondary Batteries of Plant 



and Faure. By J. H. Gladstone and A. Tribe. 

 Dynamic Eleclricity. By John Hopkinson, J. A. 



Schoolbred, and R. E. Day. 18° 



Dynamo-Electric Machines, Recent Progress in. 



By Professor Sylvanus P. Thompson. 18° 



Electric Bells. By F. C. AUsop. 12° 



Electric Lighting from Central Stations. By G. 



Forbes.... 



Elrctricitv, Supply of, by Local Authorities. 



By K. Hedges. 8° 



Electro-Magnetic Telegraph, A Hand-Book of 



the. By A. E. Loring. 18° 



Electro-Magnets. By Th. Du Moncel. Tr. by 



C. J. Wharton 



Electro-Telegraphy. By F. S. Beecher. 16°.. 

 Incandescent Electric LightiNg. A Practical 



Description of the Edison System. By L. H. 



Latimer, C. J. Field, and J. W. Howell. iB".. 

 Induction Coils : How Made and How Used. 



$0.50 



By 



Practical Dynamo-Building for Amateurs 

 Frederick Walker. j8° 



Terrestrial Magnetism and the Magnetism 

 Iron Vessels. By Professor Fairman Roge 

 18° 



Thermo-Electricity. By a. Rust. 8° 



Wrinkles in Electric Lighting. By V. Stephe 



ENGINEERING. 



Actual Lateral Pressure of Earthwork, The. By 

 Benjamin Baker. 18° 



Arches, Theory of. By Professor W. Allan. 18° 



Arches, Theory of Solid and Braced. By William 

 Cain, C.E. iS" 



Beams and Girders. Practical Formulas for their 

 Resistance. By P. H. Phllbrick. 18° 



Boiler Incrustation and Corrosion. By F. J. 

 Rowan. 18° 



Bridge and Tunnel Centres. By John B. Mc- 

 Master, C.E. 18° 



Bridges, On the Theory aid Calculation of Con- 

 tinuous. By Mansfield Merriman, Ph.D. 18° 



Bridges, Practical Treatise on the Properties of 

 Continuous. By Charles Bender, C.E. 18°.. 



Cable-Making of Suspension Bridges. By W. 

 Hildenbrand, C.E. 18° 



Compound Engines. Tr. from the French of A. 

 Mallet. 18° 



Flow of Water in Open Channels, Pipes, Conduits, 

 Sewers, etc.; with Tables, By P. J. Flynn, 

 C.E. 18°... 



Foundations. By Professor Jules Gaudard, C.E. 

 Tr. from the French . 18° 



Friction of Aii- in Mines. By J. J. Atkinson. 

 18° 



Fuel. By C. William Siemens, D.C.L.; to which 

 is appended the Value of Artificial Fuel as 

 compared with Coal, by John Wormald, C.E. 



Gases 



dth in Coal-Mil 



By J. J. Atkii 



Helicoidal Oblique Arches, Treatise on the 

 Theory of the Construction of. By John L. 

 Culley, CE. 18° 



High Masonry Dams. By John B. McMaster, 

 C.E. 18° 



How to draw a Straight Line : A Lecture on Link- 

 ages. By A. B. Kempe - 



Ice-Making Machines. From the French of M. 

 Le Doux. 18° 



Kinematics of Machinery. By Professor Ken- 

 nedy. With an Introduction by Professor R. 

 H.Thurston. 18° 



Linkages : the Different Forms and Uses of Ar- 

 ticulated Links. By J. D. C. De Roos. 18°.. 



Maximum Stresses in Framed Bridges. By Pro- 

 fessor William Cain, C.E. 18° 



Metals and their Chief Industrial Applications. 

 By C. R. A. \y right 



Metals, The Fatigue of, under Repeated Strains. 

 Fro n the German of Professor Ludwig Spang- 

 enburgh, with a Preface by S. H. Shreve, A.M. 

 18° 



Plate Girder Construction. By Isami Hiroi. rS" 



Practical Designing of Retaining Walls By 

 Arthur Jacob. A. B. 18°...; 



Proportions of Pins used in Bridges. By Charles 

 Bender, C.E. 18° 



Railroad Economics; or. Notes, with Comments. 

 By S. W. Robinson, C.E. 18°.. 



Retaining Walls, Surcharged and Different Forms 

 of. By James S. Tate, C.E. 18° 



Safe 1 Y Valves. By Richard H. Buel, C.E. 18° 

 Arches. By Professor E. W. Hyde, C.E. 



STEAM-Boiler Explosions. By Zerah Colburn. 18° $0.; 

 " Indicator, The, and its Use. By 



from the French of M. Leon 

 d'Co'n- 



W. H. LeVan. 



SiEAM Inject' 



Pochet. 18" 



Storage Reservoirs, On the Designing 

 struclion of. By Arthur Jacob, A. 13, 



Strength of Materials. By William Kent, C.E. 

 18° 



Strength of Wrought-Iron Bridge Members. By 

 S. W. Robinson, C E. .8° 



Testing-Machines, their History, Construction, 

 and Use. By Arthur V. Abbott. 18° 



Theory of the Gas-Engine, The. By Dugald 

 Clerk. 18° 



Topographical Surveying. By G. J. Specht, 

 Prcfessor A. S. Hardy, John B. McMaster, 

 and H. F. Walling. 18° 



Transmission of Power by Compressed Air. By 

 Robert Zahner, M.E, 18° 



Transmis.,ion of Power by Wire Ropes. By Al- 

 bert W. Stahl, U.S.N. 18° 



Triumphs of Modern Engineering. By Henry 

 Frith. 12* 



Turbine Wheels. By Professor W. P. Trow- 

 biidge. r8° 



Ventilation of Coal-Mines, The. By W. Fair- 

 ley, M.E. 18° 



VoussoiR Arches, A Theory of. By Professor W. 

 E. Cain. 18° 



VoussoiR Arches applied to Stone Bridges, Tun- 

 nels, Culverts, and Domes. By Professor 

 William Cain. 18'= 



Wheels, A Practical Treatise on the Teeth of. 

 By Professor S. W. Robinson. 18° 



miSCEIiliANEOUS. 



Graphic Method for solving Certain Algebraic 

 Equations. By Professor George L. Vose. jS° 



Leahy's The Art of Swimming in the Eton Style. 



Life History Album. By Francis Gallon. 4° . . . . 



Life of Faraday. By J. H. Gladstone. 16° 



Polarisation of Light. By W. Spottiswoode. . . 



Record of Family Faculties. By Francis Galton. 

 4° 



Streeter s Great Diamonds of the World. 4° . . . 



NATURAI, HISTORY. 



of Flowe 

 the British Flor 

 lRWIn, Charles, 

 from " Natun 



, On the. As Illustrated in 



By Grant Allen 



Memorial Notices reprinted 

 By Professor Huxley 



Degeneration. By E. Ray Lankester. , 

 Essays Selected from Lay Sermons, Addn 

 Reviews. By G. H. Huxley, LL.D.. 



Griscom's Animal Mecha 



Origin and Metamorphoses of Insects, On the. By 



Sir John Lubbock 



Rennie's Natural History of the Elephant. 18°.. 

 Rennie's N'-tural History of Quadrupeds. 18®... 

 Scientific Evidences of Organic Evolution. By 



G. J.Romanes 



Tales of the Birds. By W. Warde Fowler 



Year with the Birds, A. By W. Warde Fowler. . . 



SANITARY SCIENCE. 

 Air We Breathe, the, and Ventilation. By Pro- 

 fessor H. A. Mott. 16° 



Bad Drains, and How to Test'them. By R. H. 



nd Sloppy Str( 



Illu 



Stadia Surveying. The Theory of Stadi; 

 By Arthur Winslow. 18°. . 



Me 



Disease and Putrescent Air. By T. Rowan. 8°.. 



Drainage of Towns. By J. Phillips. 8° 



Dwelling-Houses : Their Sanitary Construction 

 and Arrangements. By Professor W. H. Cor- 

 field. 18° 



Fashion in Deformity. By William Henry Flower. 



Food. The Composition, Digestibility, and Nu- 

 tritive Value of. By Professor Henry A. 

 Mott 



Health, The Laws of. By W. H. Corfield. 8°.. 



Health-Science, A Manual of. By Andrew Wil- 



Healthy Foundations for Houses. By Glenn 

 Brown. 18° 



Hints on taking a House. By H. P. Boulnois. 

 r6° 



House Drainage and Sanitaiy Plumbing. By W. 

 P.Gerhard. 18° , 



Maternal Management of Children in Health 

 and Disease. By Dr. Thomas Bull. 12° 



Pneumatic Drainage. By A. Smith. 8° 



Potable Water and the Different Methods of de- 

 tecting Impurities. By Charles \V. Folkard. 

 18° 



Sanitary Condition of Dwelling-Houses in Town 

 and Countr^f. By George E. Waring, jun. iS*. 



Sanitary Drainage of Buildings, Notes embodying 

 Recent Practice in, with Memorandi on the 

 Cost of Plumbing Work. By W. P. Gerhard, 



C. E. 



Protection. By W. Parry. 6° 



mitarv Works Abroad. By R. Manning. 8°.. 

 S-ITATION. Simplicity in. By E. T. Blake. 8°. 

 IVAGE. Disposal of. By Maxwell and Tuke. 8°. 

 ivERG.ases: Their Nature and Origin. By A. 

 De Va 



id Sewage Utilization. By Professor 

 W. H. Corfield. 18° 



Shone Sewerage System. By E. Ault. 8° 



Storage of Water. By J. B. Denton. 8° 



Ventilation, Mechanics of. By George W. Raf- 

 ter.C.E. 18° 



Water and Water Supply. By Professor W. H. 

 Corfield. iS° 



