June 27, 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. 



AGRICUIiTURE:. 



. By J. B. Denton. 8°. ! 

 of Different Nations. By 



Agricultural Dr; 

 Animal Food Re 



P. L. Simmonds. i 



Armstrong's Agriculture. i8° 



British Wild-Flowers Considered in Relation to 



Insects By ^ir John Lubbock 



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

 DiSE \SES 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- 



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-clarden. By Mrs. J. C. Loudon. 12°. 



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

 L. Sim nonds. 12° 



Horticulture. The Theory of ; or. An Attempt 

 to explain Gardening upon Physiological Prin- 

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



By R^ W.' Birch, 

 iduc'ts. By P. L. 



Sewage Irrigation by Fan 



architecture: and r[til.diivg 

 constrcctioiv. 



Architecturk, the Stepping-Stone to. By 



Thomas Mitchell. 18° , 



Boiler and Water Pipes, Kitchen. By H. Grim 



Bu 



Construction. By Edward J. Burrell. 





Chimneys for Furnaces, Fireplaces, 

 Boilers. By K. Armstrong, C.E. 



Cooking Range. The. By F. Dye. 12° 



Fires in Theatres. By E M. Shaw. 12° 



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



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

 Hot- Water Apparatus, Fi.\Ing. By J. Eldridge. 



Hot-Water Fitting and Steam Cooking Appa- 

 ratus. By K. Dye. i6° 



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



lof Beams under Tn 



Prof=ssorW. Allan. 18°.... 



Ventilation of American Dwellings. Lly Da 



Boswell Reid, M.D. 12° 



Ventilation of Buildings. By W. F. Butler. 



ASTRONOMY AND NAVIGATION. 



Astronomy for Beginners. Bv Francis Fellowes. 



16° ' 



Astronomy, Lessons in Elementary. By R. A. 



Procter. 8° 



Hours with a Three-Inch Telescope. By Capt. 



William Noble. S° i 



Magnetism and the Deviation of the Compass, 



By John Merrifield. 18° 



Navigation. A I'reitise on. for the Use of Stu- 

 dents. By John Merrifield. 12^ i 



Sea-Routps, 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 



CHEMISTRY. 



Experimental Chemistry for Junior Students. 

 By J. E. Reynolds. 



Part I. Introductory 



Partll. Non-Metals 



Part III. Metals i 



Part IV. Chemistry of Carbon Compounds, or 



Organic Chemistry ] 



Faraday's Chemistry of a Candle. 



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. 8° 



Qualitative Analysis and Laboratory Practice, 

 alof. By T. E. Thorpe and M. M. Pat- 



Mu 



Qualitative Chemical Analysis, A Short Course 

 in. By Professor I. M. Crafts and Professor 

 Charles .\. Schaeffer. 12*^ 



Qualitative Chemical Analysis. An Elementary 

 Manual of. By Maurice Perkins. 12" 



QuantitatiViS Analysis. By H. Carrington Bol- 



Thorpe. 18° 



BLES for the Analysi 

 in School Laborato: 



al Analysis. By T. E. 



Cult 



Wa 



EDUCATION. 



nd American Education. By Mayo W. 

 of the Observing Faculties. By Rev. 



LiBHA 



By A. Lang. With a Chapter on 

 Modern Illustrated Bcoks, 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 



EIiECTRICITY. 



Alternate Current Machinery. By G. Kapp. 



18° 



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-Electkic Machines, Recent Progress in. 



By Professor Sylvanns P. Thompson. 18° ... . 



Electric Bells By F. C. Allsop. 12° 



Electric Lighting from Central Stations. By G. 



Forbes 



Electricity, Supply of, by Local Authorities. 



By K. Hedges. 8° 



Electr.j-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. i6°.. 

 Incandescent Electric Lights, with Particular 



Reference to the Edison Lamps at the r^aris 



E.xhibition. By Comte Th. Du Moncel. W. 



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

 Induction Co ls : How Made and How Used. 



Row 



Gases 



nth in Coal-Mii 



H. Thu 



By Isami Hiroi 

 etaining Walls 



Tekrestrial Magnetism and the Magnetism of 

 Iron Vessels. By Professor Fairman Rogers. 

 18° 



THERMO-ELECTRICI-fv. By A. 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. i8» 



Arches. Theory of Solid and Braced. By William 

 Cain, C E. i8» 



Beams and Girders. Practical Formulas for their 

 Resistance. By P. H. Phllbrick. 18° 



Boiler Incrustation and Corrosion. By F. J. 



id 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. iS".. 



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 lables By P. J. Flynn, 

 C.E. 18° 



Foundations. By Professor Jules Gaudard, C.E. 

 Tr. from the French. 16° 



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. 



By J. J. Atkin- 



Helicoijjal Oblique Arches, Treatise on the 

 Theory of the Construction of. By John L. 

 CuUey. 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 oI Machinery. By Professor Ken- 

 ;dy. Wiih an Introduction by Professor R. 



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 G<:rman of Professor Ludwig Spang- 

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

 18° 



Plate Girder Construct 



Practical Designing < 

 Arthur Jacob. .4.B. 



Proportions of Pins us 

 Bender, C.E. iS°.. 



:d in Bridges. By Charles 



Railroad Economics; or, Notes, with Comments. 



By S. W. Robinson. C.E. 18° .$0 



Retaining Walls, Surcharged and Different Forms 



of. By James S. Tate, C.E. 18° 



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

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



Illu 



Stadia Surveying. The Theory of Stadia Meas- 

 By Arthur Winslov 



Ry Zerah Colburn. 18° 

 , The, and its Use. By 



, from the French of Nt. Leon 



STEAM-Boilor Expl 

 Stfam-Engine Inc 



W. H. LeVan. 

 S I eam Injectors. ' 



Pochet. 18° 



Storage Reser/oirs, On the Designing and Con- 



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

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



18° 



Strength of Wroi>ght-Iron Bridge Members. By 



S. W. Robinson, C E. 18° 



Testing-Machines, their History, Construction, 



and Use. By Arthur V. Abbott. 18° 



Theory of the Gas-Engine, The. By Dugald 



Clerk. i8» 



Topographical Surveying. By G. J. Specht, 



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



and H. F. Walling. 18° 



Trans.mission of Power by Compressed Air. By 



Robert Zahner, M.E 18° .. 



Transmission of Power by Wire Ropes. By Al- 

 bert W. Stahl, U.S,N. i3° 



Turbine Wheels. By Professor W. P. Trow- 



biidg 



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 Stc 

 nels. Culverts, and Domes. 

 William Cain, ife" 



Wheels. A Practical Treatise 

 By Professor S. W. Robinson 



: Bridges, Tun- 

 By Professor 



MISCELLANEOUS. 



APHIC Method for solving Certain Algebraii 

 Equations- By Professor George L. Vose. i&' 

 ahy's The Art of Swimming in the Eton Style 

 'E History Album By Francis Gallon 4°.. 



fE of Faraday. By J. H- Gladstone. 16° 



l.\risation of Light. By W. Spottiswoode. . . 

 CORD of Family Faculties. By Francis Galton 



:Di: 



nds of the World. 



NATURAL, HISTORY. 



Chapters on Ants. 

 Colours of Flower 



the British Flora 

 Common Frog, The. 

 Darwin, Charles. 



from '■ Nature." 



By Mary Treat. 32° 



;, On the. As Illustrated in 

 . By Grant Allen 



By St George Mivart 



Memorial Notices reprinted 



By Professor Huxley 



SANITARY SCIENCE. 



Air We Breathe, the, 



fessor H. A. Mott. 



Bad Drains, and How 



DiKTY Dustbins and Sloppy St 



d Ventilation. By Pro- 



5° 



Test them. By R. H. 



Byii! P. 



nd Puti 



t Air. By T Rowan. 8° 



llNAGE of towns. By J. Phillips. 8° 



elling-Hcuses : Their Sanitary Constructio 

 and Arrangements. By Professor W. H. Coi 



field IS° 



;hion in Deformity. By William Henry Flowe 



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° ... . 



H 



HiN 



■6° 



Foundations fpr Houses. 



. 18° 



taking a House. By H. 



lyPluml 



By Glenn 

 '. Boulnois. 

 ng. ByW. 



in Health 



lage and Sanil 

 P. Gerhard. 18° 



Maternal Management of Childn 



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 D>velling-Houses in Town 

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



Sanit.arv 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, i" 



Sanitary Works Abroad. ByR. Minning. 8°.. 

 Sanitation. Simplicity in. Bv E. T. Blake. 8°. 

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

 Sewer Gases: Their Nature and Origin. By A. 



By Professor 



De Va 

 Sewerage and Sew.ige Utilizat 



W. H. Corfield. .8° 



Shone Sewer.ige System. By E. Ault. 8° 



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



Ventilation, Mechanics of. By George W. Raf- 



Water and Water Supply. By Professor W. H. 

 Corfield. iS" 



