January 9, 1891.J 



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. 



AGRICVIiTVRE. 



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

 Animal Food Resources of Different Nations. By 



P. L. Simmonds. ii° i.oo 



Armstrong's Agriculture. 18° 75 



British Wild-Flowers Considered in Relation to 



Insects. By Sir John Lubbock 1-25 



C O FFEE 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- 



Flowers, The'Coiours of. By Grant Allen. 72° i.oo 



Fruits, Selected : Their Culture, Propagation, 

 and Management in the Garden and Orchard'. 

 ByC.Downing. 12° 1.50 



Gardeni.ng 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° 1.50 



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 



ARCHITECT (JRE AND RUI£.DING 

 CONSTRUCTION. 



Architecture, the Stepping-Stone to. By 



Thomas Mitchell. 18° so 



Boiler and Water Pipes, Kitchen. By H. Grim- 



shaw. 8° 40 



Building Construction. By Edward J. Burrell. 



Chimneys for Furnaces, Fireplaces, and Steam- 



Boilers. By R. Armstrong, C.E. 18° 50 



Cooking Range, The. By F. Dye. 12° 20 



Fires in Theatres. By E. M. Shaw. 12° 1.25 



G.4S Fitter's Guide. By J. Eldndge. 12° 40 



Hot-Watkr Apparatus, Fitting. By F. Dye 12" i.oo 

 Hot-Water Apparatus, Fi.xing. By J. Eldridge. 



12° 40 



Hot-Water Fitting and Steam Cooking Appa- 

 ratus. By F. Dye. 16'' 50 



IPUMP Fitter's Guide. By J. Eldridge. 12° 40 



Strength of Beams under Transverse Loads. By 



ProfessorW. Allan. 18° ^o 



Ventilation of American Dwellings. By David _ 



Boswell Reid, M.D. 12° i.^ 



Ventilation of Buildings. By W. F. Butler. iS° .50 



ASTRONOraV AND NAVIGATION. 



Astronomy, Lesions in Elementary. By R. A. 



Proctor. 8° 60 



Hours with a Three-Inch Telescope. By Capt. 



William Noble. 8° 1.50 



Magnetism and the Deviation of the Compass, 



By John Merrifield. 18° 50 



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

 dents. By John Merrifield. 12° 1.50 



Student's Atlas, The. By R. A. Proctor. 8° . . . 1.50 



CHEMISTRY. 



■Chemical Lecture Notes. By Peter T. Austen. 

 Electro-Chemical Analysis. By Ec gar F. Smith. 



lExpERIMENTAL Chemistry for Junior Students. 

 By J. E. Reynolds. 



Parti. Introductory 45 



Part II. Non-Metals 75 



Part III. Metals 1.05 



Part IV. Chemistry of Carbon Compounds, or 



Organic Chemistry 1.20 



Faraday's Chemistry of a Candle. 16'' 85 



Organic Chemistry, Introduction to the Study of. 

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

 Austen. 12° 1.50 



Practical Chemistry ; the Principles of Qualita- 

 tive Analysis By William A. Tilden. 8° 45 



Practical Inorganic Chemistry, An Introduction 

 to ; or The Principles of Analysis. By William 

 Jago. 8° 45 



Practical Organic Analysis. An Introduction to. 



By George E. R. Ellis. 8° 50 



Qualitative Analysis and Laboratory Practice, 

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

 tisonMuir. 12° 1.25 



Qu.alitative Chemical Analysis, A Short Course 

 in. By Professor I. M. Crafts and Professor 

 Charles A. Schaeffer. 12" 1.50 



Qualitative Chemical Analysis. An Elementary 



Manual of. By Maurice Perkins. 12° i.oo 



Quantitative Analysis. By H. Carrington Bol- 

 ton. 8° .. i..i;o 



Quantitative Chemical Analysis. By T. E. 



Thorpe. 18° 1.50 



Tables for the Analysis of a Simple Salt for Use 



in School Laboratories. ByA. Vinter. 8° 40 



EDUCATION. 



British and A 



Hazeltine. 

 Culture of the Observing Faculties, 



Warren Burton. 16" 



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



Modern Illustrated Books, by Austin Dobson 



By Mayo W. 



i 



By Rev. 



Alte 



i Old Greek Educatit 



ER Science Lectures for the People. 



iURE in High Schools in Denmark. 



nd Thinking. By W. K. Clifford 



; Reform from an Educational Point of 

 . By J, H. Gladstone 



EliECTRICITY. 



.te Current Machinery. By G. Kapp. 



Chemistry of the Secondary Batteries of Plante 



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

 Dynamic Eleciricity. 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. Allsop. i2'> 



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 Mor.cel 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 I. W. Howell. 18°., 

 Induction Coils : How Made and How Used. 



Practical Dynamo-Building for Amateurs. By 

 Frederick Walker. 18° 



Terrestrial Magnetism and the Magnetism of 

 Iron Vesse's. By Professor Fairman Rogers. 

 18° 



Thermo-Electricity. ByA. Rust. 8° 



Wrinkles in Electric Lighting. By V. Stephens. 



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. 18° 



Beams and Girders. Practical Formulas for their 

 Resistance. By P. H. Philbrick. 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. 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. iS" 



Friction of Air 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 



ath 



Coal-Mines. By J. J. Atkin- 



Helicoidal Oblique Arches, Treatise on the 

 Theory of the Construction of. By John L. 

 CuUey, CE. 18° 



High Masonry Dams. By John B. McMaster, 

 CE 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. i8° 



Kinematics o! Machinery. By Professor Ken- 

 nedy. Wilh 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. Wright 



Metals, The Fatigue of, under Repeated Strains. 

 Fro r> the German of Professor Ludwig Spang- 

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



Plate Girder Construction. By Isami Hiroi. 18° 

 Practical Designing of Retaining Walls By 



Arthur Jacob. A. B. r8° 



Proportions of Pins used in Bridges. By Charles 



Bender, C.E. iB° 



Railroad Economics; or. Notes, with Comments. 



By S, W. Robinson, C.E. .8° 



Retaining Walls, Surcharged and Different Forms 



of. By James S. Tate, C.E. 18° 



Safe Y Valves. By Richard H. Buel, C.E. iS" 

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



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



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

 W. H. LeVan. 18° 



SlEAM 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 Wrooght-Iron Bridge Members. By 

 S. W. Robinson, C E. 18° 



Testing-Machines, their History, Construction, 



and Use. By Arthur V. Abbott. 18° 



f the Gas-Engine, The. By Dugald 



Clerk. 18° 



Topographical Surveying, 



Professor A. S, Hardy, Joh 



and H. F. Walling. 18° 



Transmission of Power by O 



Robert Zahncr, M.E 18° 



Transmis ion of Power by Wire Ropi 



bertW.Stahl, U.S.N. 18° 



f Modern Engineering. By H( 



pressed Air. By 

 ByAll 



Frith. 



nry 



By 





Turbine Wheels 



bridge. 18°.. 

 Ventilation of Coal-M 



ley, M.E. 78° 



R Arches, A Theory of. By Professor W. 



V. P. Trow- 

 By W.Fai'r- 



E, Ca 



ussoiR Arches applied to Stoi 

 nels. Culverts, and Domes. 

 William Cain, iS" 



^EELS. A Practical Treatise c 

 By Professor S. W. Robinson. 



: Bridges, Tun- 

 By Professor 



the Teeth of. 



nilSCELIiANEOUS. 



Graphic Method for solving Certain Algebraic 



Equations, By Professor George L. Vose. 18** 



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. Hy W. Spottiswoodc. . . 

 Record of Family Faculties. By Francis Galton. 



Stre 



; Great Diamonds of the World. 4° . . . 

 NATURAIi HISTORY. 



Colours of Flowers, On the. As Illustrated in 



the British Flora. By Grant Allen 



Darwin, Charles. Memorial Notices reprinted 



from " Nature." By Professor Huxley 



Degeneration. By E. Ray Lankester 



Essays Selected from Lay Sermons, Addresses, and 



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



Griscom's Animal Mechanism. 18° 



Origin and Metamorphoses of Insects, On the. By 



Sirjohn Lu'obock 



Rennie's Natural History of the Elephant. iS''. . 

 Rennie's N tural History of Quadrupeds. 18° . . . 

 Scientific Evidences of Org.nic 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. 

 Reeves. 12" 



DiKTV Dustbins and Sloppy Streets. By H. P, 

 Bouln ■ 



By R. 



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 iS° 



t ashion in Deformity. By William Henry Flower. 



Food. The Composition, Digestibility, and Nu- 

 tritive Value of. By Professor Henry A. 

 Molt 



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



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



Healthy Foundations for Houses, 



Brown. 18° 



taking a House. By H. 



By Glenn 

 '. Boulnois. 



le" 



Ulu 



Stadia Surveying. The Theory of Stadia Meas. 

 By Arthur Winslow. 18° 



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 W. Folkard. 

 18° 



Sanitary Condition of Dwelling-Houses in Town 

 .and Country. By George E. Waring, jun. iS*^. 



Sanitary Drainage of Buildings, Notes embodying 

 Recent Practice in, with Memorand 1 on the 

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



Sanitary Protection. By W.' Parry. S°.'. '. '. '. '. '. '. '. '. 



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



Sanitation. Simplicitj' in. By E. T. Blake. 8°. 



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



Sewer Gases: Their Nature and Origin. By A. 

 De Varona. 18° 



Sewerage and Sewage Utilization. By Professor 

 W. H. Corfield. .8° 



Shone Sewerage System. By E. Ault. S° 



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



Ventilation, Mechanics of. Bv George W. Raf- 

 ter, C, E, 18° .' 



Water and Water Supply. By Professor W. H. 

 Corfield. 18° 



