April 25, 1890.] 



SCIENCE. 



LOW-PRICE_D BOOKS. 



Any of the following low-priced books will be 

 'mailed postpaid on receipt of price. 



SCIENCE BOOK AGENCY, 



47 Lafayette Place, New York. 



agriculture:. 



-AoRicuLTURAL Drainage. By J. B. Denton. S°. S 



Animal Food Resources of Different Nation?. By 

 P. L. Simmonds. ^2° 



Armstrong's Agriculture. t8° 



British Wild-Flowers Considered in Relation to 

 Insects. By Sir John Lubbock 



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



Diseases of Field and Garden Crops, chiefly such 

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

 16"* 



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

 bock 



Flowers. The Colours of. By Grant Allen. 12° 



Fri;its, 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. i^°. 



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. 



Sewage Utilizatic 



Useful Animals 



Simmonds. i 



By P. L. 



-Architecture, the 

 . Thomas Mitchell 

 Soiler and Water Pipes, Kitchen 



ARCHITBCXURE AND BUIIiDING 



CONSTRUCTION. 



Stepping-Stone to. By 



18" 



y H. Grim- 



snaw. b" 



Building Construction. By Edward J. Burrell. 



■Chimneys for Furnaces, Fireplaces, and Steam- 



Boilers. By R. Armstrong. C.E. 18° 



Cooking Range, The. By F. Dye. 12° 



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



■Gas Fitter's Guide. By J. Eldiidge. 12^^ 



Hot-Wathr Apparatus, Fitting. By F. Dye 12" 

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



Cooking Appa- 

 By 



Hot-Water Fitting and St 



ratus. By F. Dye. i6° 



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

 :Strength of Beams under Transverse Load 



Professor W. Allan. iS" 



Ventilation of American Dwellings. By David 



Boswell Reid, M.D. 12° 1 



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



ASTROXOMV AND NAVIGATION. 



Astronomy for Beginners. Bv Francis Fellowes. 



16° '. 



Astronomy, Lessons in Elementary. By R. A. 



Prcctor. 8° 



Hours with a Three-Inch Telescope. By Capt. 



William Noble. S» , 



.Magnetism and the Deviation of the Compass. 



By John Merrifield. 18° 



Navig.^tion. a Treatise on, for the Use of Stu- 

 dents. By John Merrifield 12° i 



Sea-Routfs. 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° . . . 1 



CHEilllSTKY. 



nistry for Junioi 



Students. 



Experimental Ci 

 By J. E. Reyn 



Parti. Introductory 



Part II. Non-Metals 



Part TIL Metals 



Part IV. Chemistry of Carbon Compounds, or 



Organic Chemistry 



Faraday's Chemistry of a Candle. 16° 



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" 



<2t7ALiT.\TivE Analysis and Laboratory Practice, 

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



.Mii 



Qu.^LiTATivE Chemical 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- 

 ton. 8** 



QUANTIT.ATI 



Chemical Analys 



By T. E. 



a Simple Salt for Use 

 By A. Vinter. i," 



Cv 



EDUCATION. 



TiSH and An 



H azeltine . 3^° ' 



of the Observing Faculties. By Rev. 



Wan 



16°. 



■, 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 Schcols in Denmark. By 

 Dr. Hertel 



Seeing and Thinking. By W. K. Clifford 



Spelling Reform from an Educational Point of 

 View. By J. H. Gladstone 



EI.ECTUICITV. 



Alternate Current Machinery. By G. Kapp. 



imistry of the Secondary Batteries of Plante 

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

 lAMic Eleclricity. By John Hopkinson, J. A. 



Schoolbred, and R. E. Day. iS" 



J/^mo-Electric Machines. Recent Progress in. 

 By Professor Sylvanus P. Thompson. iS° .... 



CTRIC Bells. By F. C. Allsop. 12° 



Light Precautions. By K. Hedges. 



Electric Lighting from Central Stat 



Forbes 



Electmcal U 



By G. 

 Practical. By j. Swinburne. 



Electricity, Supply of, by Local Authorities. 



By K. Hedges. b° 



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 Paris 



Exhibition. By Comte Th. Du Moncel, W. 



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

 Induction Co ls : How Made and How Used. 



18° 



Gases 





Coal-Mil 



By J. J. Atkin- 



nts. 



Strength and Diameter of Electric Conductors. 



_ By G. Forbes. 8° 



'lagnetism and the Magnetism of 

 Vesse's. By Professor Fairman Rogers. 



■Electricity. By A. Rust. 8° 



s in Electric Lighting. By V. Stephens. 



ENGINEERING. 



Actual Lateral Pressure of Earthwork, The. By 

 Benjamin Baker. 18° 



Arches, Theory of. By Professor W, Allan. iS- 



Arches, Theory of Solid and Braced. By William 

 Cain, C E. 18° 



Beams and Girders. Practical Formulas for their 

 Resistance. By P. H. Philbrick. i8» 



BoiLBR Incrustation and Corrosion. By F. J. 

 Rowan. i&° 



Bridge and Tunnel Centres. By John B. Mc- 

 Master. C.E. iS°. 



Bridges, On the Theory and Calculation of Con- 

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



Bridges, Practical Treatise on the Properties of 

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



Cable-Making of Suspension Bridges By W. 

 Hildenbrand, C.E. 18° 



Compound Engines. Tr. from the French of A. 

 Mallet. iS° 



Flow of Water in Open Channels, Pipes, Conduits, 

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

 C.E. 18° 



Foundations. By Pr.fessor Jules Gaudard, C.E. 

 Tr. from the French. 18° 



Friction of Air in Mines. By J. J. Atkinson. 

 iS° 



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. 



Helicoidal Oblique Arches, Treatise on the 

 Theory of the Construction of. By John L. 

 Culley.CE. iS- 



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 Dou.x. r&° 



Kinematics of Machinery. By Professor Ken- 

 nedy. Wiih an Introduction by Professor R. 

 H. Thurston. iS° 



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 W lliam 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. 

 18° 



Plate Girder Construction. By Isami Hiroi. 18° 



Practical Designing of Retaining Walls. By 

 Arthur Jacob, A. B. t8° 



Proportions of Pins used in Bridges. By Charles 

 Bender, C.E. iS° ■. 



Railroad Economii 

 By S. W. Robin 



Retaining Walls, Surcharged and Different Forms 

 of. By James S. Tate, C.E. 18° So 



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



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

 Illus. 18°..... 



Stadia Surveying. The Theory of Stadia Meas. 

 urements. By Arthur Winslow. 18° 



STEAM-Boilor Explosions. Ry Zerah Colburn. 18° 



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

 W. B. LeVan. 18° 



S eam Injectors. Tr. from the French of M, Leon 

 Pochet. 18° 



Storage Reservoirs, On the Designing and Con- 

 struction of. By Arthur Jacob, A. B. i8°.... 



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



1 Bridge Membe: 



By 



Strength of Wroi.ght-Iro 

 S. W. Robinson, C E. 



Testing-Machines, their History, Construction, 

 and Use. By Arthur V. Abbott. 18° 



Theory of the Gas-Engine, 1 he. By Dugald 

 Clerk. ,8" . 



Topographical Surveying. By G. J. Specht. 

 Professor A. S Hardy, John B. McMaster, 

 and H. F. Walling. ,8° 



Transmission of Power by Compressed Air. By 

 Rotert Zahner, M E 18° 



Transmission of Power by Wire Ropes. By Al- 

 bert W. Stahl, U.S.N. 18° 



Turbine Wheels. By Professor W. P. Trow- 

 biidge. iS° 



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

 ley, M.E. 18° 



VoussoiR Aiches. A Theory of. By Professor W. 



lin. 18°. 

 Arches : 



ppHed to Stone Bridges, Tun- 

 and Domes. By Professor 



the Teeth of. 



William ( 



Wheels, A Practical Treatise 



By Professor S. W. Robinso 



miSCELLANEOVS. 



Graphic Method for solving Certain Algebraic 



Equations. By Professor George L. Vose. ih° 



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



Life History Album. By Francis Galton. 4° 



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



PoL.MlSATloN of Light. By W. Spottiswoode... 

 Record of Family Faculties. By Francis Galton. 



Stre 



t's Gn 



tDi: 



ndsof the World. 4° 



NATUKAI. HISTORV. 



CHAPThFS on Ants. By Mary Treat. 32° 



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 



SANITARY SCIENCE. 



We Breathe, thi 

 fesEor H. A. Mot 

 i Drains, and Ho 



nd Ventilation. By Pro- 



16° 



o Test them. By R. H. 



Dustbins and Sloppy Streets. By H. P. 



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

 Domestic Filtration of Water. By E. F. B. Den- 



Drainage of Towns. By J. Phillips. 



DwELLiNG-HtuSES : 1 heir Sanitary Constn 



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. 

 Molt 



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. 



■6° 



11 y Plumbing. By W. 



Health 



House Drainage and Sa 



P. Gerhard. 18° 



Maternal Management of Childre 



and Disease. By Dr. Thomas Bull. 12" 



Pneumatic Drainage. By A. Smith. 8° 



Potable Wafer and the Different Methods of de- 

 tecting Impurities. By Charles VV. Folkard. 



18°. 



dition of Dwelling-Houses in Town 

 and Country. By George E. Waring, jun. iS''. 

 S.^NITARY Drainage of Buildings. Notes embodying 



C.E. 



Sanitary Protection. By W. Parry. 8° 



Sanit.arv Works Abroad. By R. Manning. 8°.. 

 Sanitation, Simplicity in. By E. T. Blake. 8°. 

 Sewage, Disposal of. By Maxwell and Tuke. 8'^. 

 Sewer Gases: Their Nature and Origin. By A. 



De Vs 



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- 



, C. E. 



Wa 



