September 5, 1890.] 



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. 



AGRICiriiTURE:. 



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



Animal Food Resources of Different Nations. By 



P. L. Simmonds. 12° i.oo 



Armstrong's Agriculture. 18° 7S 



British Wild-Flowers Considered in Relation to 



Insects By Sir John Lubbock 1.25 



Coffee and Chiccory. By P. L. Simmonds. 12°. .75 



Diseases of Field and Garden Crops, chiefly such 

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

 16° 1.50 



Flowers, Fruits, and Leaves. By Sir John Lub- . 



bock 1.25 



Flowers, The Colours of. By Grant Allen. 12° i.oo 



Fruits, Selected : Their Culture, Propagation, 

 and Management in the Garden and Orchard. 

 By C. Downing. 12° 1.50 



Gardening for Ladies, and Companion to the 



Flower-Garden. By Mrs. J. C. Loudon. 12°. 1.50 



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



L. Simmonds. 12° 1.25 



Horticulture, The Theory of ; or. An Attempt 

 to explain Gardening upon Physiological Prin- 

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

 12°.. . I. SO 



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



Sewage Utilization. By B. Latham. 8° i.oo 



Useful Animals and their Products. By P. L. 



Simmonds. 16° 1.25 



Mitchell. 

 Boiler and Water Pipes, Kitche 



ARCHITECTURE AND RUII,DING 

 COSSTRCCTION. 



Architecture, the Stepping-Stone to. By 



iB» S' 



By H. Grim- 



4< 



Building Construction. By Edward J. Burrell. 



I2» 8( 



Chimneys for Furnaces, Fireplaces, and Steam- 



Boilers. By R. Armstrong, C.E. 18° 5c 



Cooking Range, The. By F. Dye. 12° 21 



Fires in Theatres. By E. M. Shaw. 12° 1.2, 



Gas Filter's Guide. By J. Eldridge. 12° 41 



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

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



12° 4' 



Hot-Water Fitting and Steam Cooking Appa- 

 ratus. By F. Dye. 16° 5< 



Pump Fitter's Guide. By J. Eldridge. 12'' 4 



Strength of Beams under Transverse Loads. By 



Professor W. Allan. 18° .5* 



Ventilation of American Dwellings. By David 



Boswell Reid, M.D. 12° 1.5- 



Ventilation of Buildings. By W. F. Butler. 18° .5' 



ASTRONOMTT AND NAVIGATION. 



Astronomy for Beginners. By Francis Fellowes. 



Hou 



rith a Thn 



in Elementary. By R. A. 



;-lnch Telescope. By Capt. 



8° 



of the Compass, 



William Noble 



Magnetism and the De 



By John Merrifield. 18°. 



Navigatio.n, A Treatise on, for the Use of Stu- 

 dents. By John Merrifield. 12° 



Sea-Routes, The Shortest, and Maps for finding 

 them in a Few Seconds (Great-Circle Sailing). ■ 

 By R. A. Proctor. 4"> 



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



CHEMISTRY. 



Chemical Lecture Notes. By Peter T. Austen, 



Experimental Chemistry for Ju 



Students. 



ntroductory 



Part II. Non-Metals 



Part III. Metals 



Part IV. Chemistry of Carbon Compounds, or 



Organic Chemistry 



Faraday's Chemistry of a Candle. r6° 



Organic Chemistry, Introduction to the Study of. 

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



Austen. 12" 



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. 5° 



Qualitative Analysis and Laboratory Practice, 

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



tison Muir. 12° 



Qualitative Chemical Analysis, A Short Course 

 in. By Professor I. M. Crafts and Professor 



Charles A. Schaeffer. 12° 



Qualit.'VTIVE Chemical Analysis. An Elementary 



Manual of. By Maurice Perkins. 12° 



Quantitative Analysis. By H. Carrington Bol- 

 ton. 8° 



By T. E. 



Quantitative Chemical Analysis. 



Thorpe. 18° 



Tables for the Analysis of a Simple Salt for Usi 



in School Laboratories. By A. Vinter. 8° . . . 



EDUCATION. 



British and American Education. By Mayo W. 



Hazelline . 32° $ 



Culture of the Observing Faculties. By Rev. 



Warren Burton. 16° 



Library, The. By A. Lang. With a Chapter on 



Modern Illustrated Books, by Austin Dobson. 



Mahaffy's Old Greek Education. 16° 



Manchester Science Lectures for the People 



Overpressure in High Schools in Denmark. By 



Dr. Hertel 



Seeing and Thinking. By W. K. Clifford . . ._ 



Spelling Reform from an Educational Point of 



View. By J. H. Gladstone 



EliECTRICITV. 



Alternate Current Machinery. By G. Kapp. 



18°.... 



Chemistry of the Secondary Batteries of Plante 



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

 Dynamic Electricity. 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. AIlsop. 12° 



Electric Lighting from Central Stations. By G. 



Forbes .•.•■• 



Electricity, 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 Lights, with Particular 



Reference to the Edison Lamps at the l^aris 



Exhibition. By Comte Th. Du Moncel, W. 



H. Preece, J. W. Howell, and others. 18° ... . 

 Induction Cols: How Made and How Used. 



i8° 



n of 



Magnetism and the W 

 Vessels. By Professor Fain 



Thermo-Electricity. By A. Rust. 8° 



Wrinkles in Electric Lighting. By V. Stephe 



£:ngineering. 



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. 18°, 



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 and 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. i8» 



Compound Engines. Tr. from *he 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 Air in Mines. By J. J. Atkinson. 



18° 



Fui 



Gases 



■ith 



Coal-Mil 



;l. 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. 



By J. J. Atkin- 



tise' on the 

 By John L. 



Helicoidal Oblique Arches, Tri 

 Theory of the Construction of 

 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. iS".. 



Maximum Stresses in Framed Bridges. By Pro- 

 fessor William Cain, C.E. 18° 



Metals and their Chief Industrial Applications. 

 By C. R. A. Wright 



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. 



By 



Plate Girder Construction. By Isami Hiroi. 

 Practical Designing of Retaining Walls 



Arthur Jacob. A. B. iij° 



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. y Valves. By Richard H. Buel, C.E. 18° 

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



STEAM-Boilor Explosions. Ry Zerah Colburn. 18° $0 



Stkam-Engine Indicator, The, and its Use. By 

 W. K. LeVan. i3° 



SiEAM Injectors. Tr. from the French of M. Leon 

 Pochet. 18° 



Storage Reservoirs, On the Designing and Con- 

 struction of. By Arthur Jacob, A. B. 18° 



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

 18° 



Strength of Wrought-Iron Bridge Members. By 

 S. W. Robinson, C E. 18° 



Testing-Machines, their History, Construction, 

 andUse. By Arthur V. Abbott. 18° 



Theory of the Gas-Engine, The. By Dugald 

 Clerk. 18° 



Topographical Surveying. By G. J. Specht, 

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

 and H. F. Walling. 18° 



Transmission of Power by Compressed Air. By 

 Robert Zahner, M.E. 18° .. 



Transmis.jION of Power by Wire Ropes. By Al- 

 bert W. Stahl, U.S.N. 18° 



Turbine Wheels. By Professor W. P. Trow- 

 bi idge. 18° 



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

 ley, M.E. 18° ... 



VoussoiR Arches, A Theory of. By Professor W. 



E. Ca 



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. iS° 



raiSCEI^IiANEOUS. 



Graphic Method for solving Certain Algebraic 



Equations. By Professor George L. Vose. iS** 



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



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



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



Polarisation of Light. By W. Spottiswoode. . . 

 Record of Family Faculties. By Francis Galton. 



Streeter's Gri 



tDi: 



nds of the World. 



Illu 



Stadia Surveying. The Theory of Stadia Meas- 

 By Arthu.- Winslow. 18° 



NATURAL, HISTORY. 



Colours of Flowers, On the. As Illustrated in 



the British Flora. By Grant Allen 



Common Frog, The. By St. George Mivart 



Darwin, Charles. Memorial Notices reprinted 



from " Nature." By Professor Huxley 



Degeneration. By E. Ray Lankester 



Essays Selected from Lay Sermons, Addresses, and 



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



Griscom's Animal Mechanism. 18° 



Origin and Metamorphoses of Insects, On the. By 



Sirjohn 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. 



Re 



Dustbins and Sloppy Streets. By H. P. 



Boulnois. 12° ■. . 



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. i8° 



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- 

 son. 8° 



Healthy Foundations for Houses. By Glenn 



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

 16° 



House Drainage and Sanitary Plumbing. By W. 

 P.Gerhard. 18° 



Maternal Management of Children in Health 

 and Disease. By Dr. Thomas Bull. I2° 



Pneumatic Drainage. By A. Smith. S° 



PoTvVble Water and the Different Methods of de- 

 tecting Impurities. By Charles W. Folkard. 

 iS° , ., .... 



Sanitary Condition of Dwelling-Houses in Town 

 and Country. By George E. Waring, jun. 18°. 



Sanitary Drainage of Buildings. Notes embodying 

 Recent Practice in, with Memorand i on the 

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

 C.E. 18° 



Sanitary Protection. By W. Parry. 8" 



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



Sanit.ation, Simplicity in. By E. T. Blake. 8°. 



Sewage, Disposal of. By Maxwell and Tuke. 8°. 



Sewer Gases: Their Nature and Origin. By A. 

 De Varona. r8° 



Sewerage and 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. 18°..- 



