October lo, 1890.] 



SCIENCE. 



LOW-PRICED BOOKS. 



Any of ihe following low-priced books will be 

 mailed postpaid on receipt of price. 



SCIENCE BOOK AGENCY, 



47 Lafayette Place, New York. 



AGRICULTUKE. 



Agricl'ltural Drainage. By J. B. Denton. B". $t.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 Lubbock 1.25 



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

 DiSE sss of Field and Garden Crops, chiefly such 



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



ii," 1-50 



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



FLOWERS.'The'Coiours'of.''Bv'Grant Alien. I2° i.oo 



Fruits, Selected: Their Culture, Propagation, 

 and Management in the Garden and Orchard. 

 ByC.Downing. 12° i-5c 



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° i.2£ 



Horticulture, The Theory of ; or. An Attempt 

 to explain Gardening upon Physiological Prin- 

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



Sewage Irrigation by Fa 



By R. W. Birch. 



EDUCATION. 



BRniSH and American Education. By Mayo W. 



Hazeltine. 32° 1 



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. 



Mahaffv's Old Greek Education. 16° 



Manchester Science Lectures for the People 



Overpressure in High Schools in Denmark. By 



By 



Dr. He 

 king and Thinking. By W_. K. Clifford^ 

 slling Reform from 



View. By J. H. Gladstone. 



Alte 



ELECTKICITY. 



arrent Machinery. By G. Kapp. 



nds. 



.25 



AKCHITECTURE AND BUILDING 

 CONSTK CCTION. 



Architecture, the Stepping-Stone to. By 



Thomas Mitchell. iS" 5( 



and Water Pipes, Kitchen. By H. Grim- 



sha 



BUILDINC 



Construction. By Edward J. Burrell. 



Chimneys for Furnaces, Fireplaces, and Steam- 



Boilers. By R. Armstrong, C.E. 18° 



Cocking Range, The. By F. Dye. 12° 



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



Gas Fitter's Guide. By J. Eld.idge. 12° 



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

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



Hot-Watbr Fitting and Steam Cooking Appa- 

 ratus. By F. Dye. 16° 



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



Strength of Beams under Transverse Loads. By 

 Professor W. Allan. iS° 



Ventilation of American Dwellings. By David 

 Boswell Reid, M.D. 12° i 



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

 ASTRONOMY AND NAVIGATION, 



AsTRONOMY_for Beginners. By Francis Fellowes. 



E!e 



ntary. By R. A. 



Astronomy, Les^< 



Pn ctor. 8° 



Hours with a Three-Inch Telescope. By Capt. 

 William Noble. S" 



Magnetism and the Deviation of the Compass, 

 By John Merrifield. 18° 



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

 dents. By John Merrifield. 12° 



Sea-Routf-s, 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. 



Electro-Chemical Analysis. By EcgarF. Sn 



ith. 



Experimental Chemistry for Junior Students. 

 By J. E. Reynolds. 



Part I. Introductory 



Part II. Non-Metals 



Part III. Metals 



Part IV. Chemistry of Carbon Compounds, or 



Organic Chemistry 



Faraday's Chemistry of a Candle. 16° 



Organic Chemistry, Introduction to the Study of. 

 By Arlolph 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. 8° 



Qualitative Analysis and Laboratory Practice, 

 " ■ ual of. By T. E. Thorpe and M. M. Pat- 



, Mu 



Qualitative 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- 



Quantitative Chemical Analysis. By T. E. 



Thorpe. 18° 



Tables for the Analysis of 



in School Laboratories. 



Chemistry of the Secondary Batteries of IMante 



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

 Dynamic Eleciricity. By John Hopkinson, J. A. 



Schoolbred, and R. E. Day. iS° ._. . 



Dynamo-Electric Machines, Recent Progress in. 



By Professor Sylvanus 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° 



Electro-Magnetic Telegraph. A Hand-Book of 



the. By A. E. Loring. 18° 



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



C. J. Wha 

 Electeo-Tel 

 Incandescent 



Reference 



Exhibitioi 



H. Preece 



UCTION Ct 



By F. S. Beecher. 16°.. 

 ■ Electric Lights, with Particular 



to the Edison Lamps at the Faris 

 :. By Comte Th. Du Moncel, W. 



J. W. Howell, and others. 18°.... 

 )ILS : How Made and How Used. 



•ith 



Coal-Mines. By J. J. Atkin- 



H. Thu 



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. tS" 



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. 



iS°. 



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. 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. 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° 



BoiL-R 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. r8° 



Bridges, Practical Treatise on the Properties of 

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



Cable-Making of Suspension Bridges By W. 

 Hildenbrand, C.E. i&° 



Compound Engines. Tr. from the French of A. 

 Mallet. 16° 



Flow of Water in Open Channels, Pipes, Conduits, 

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

 C.E. 180 



Foundations. By Professor Jules Gaudard, C.E. 

 Tr. from the French. ib° 



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



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 



Helicoidal Oblique Arches, Tn 



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- 

 dy. With an Introduction by Professor R. 



Plate Girder Construction. Bjr Isami Hiroi. 18° 

 Practical Designing of Retaining Walls By 



Arthur Jacob. A. B. jA° 



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° 

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



lllu 

 Stadia 



STEAM-Boilor Explosions. Ry Zerah Colburi 

 SThAM-ENGlNE Indicator, The, and its Us 



W. n. LeVan. 18° 



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



Pochet. 18" 



Storage Refervoirs, On the Designing and Con- 

 By Arthur Jacob, A. B. 18° 



of Materials. By William Kent, C.E. 



By 



Strength of Wroi-ght-Iron Bridge Membe: 



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 



Cleik. 



Topographical Surveying. By G. J. Specht, 

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

 and H. F. Wallinc. .8° 



Transmission of Power by Compressed Air. By 

 Robert Zahner, ME 18° 



Transmis. ion of Power by Wire R"pts. By Al- 

 bert W. Stahl, U.S.N. 18° 



Turbine Wheels. By Professor W. P. Trow- 

 biidge. r8"> 



Ventilation of Coal-Mines, The. By W. F'air- 

 ley, M.E. 18° ... 



VoussoiR Arches, A Theory of; By Professor W. 



E. Ca 



li". 



Stone Bridges, Tun- 

 ics. By Professor 



the Teeth of. 



VoussoiR Aiches appHed 



nels. Culverts, and 'Uomt 

 William Cain, ik" 



Wheels. A Practical Treatisi 

 By Professor S. W. Robinsi 



MISCEIiliANEOUS. 



Graphic Method for solving Certain Al.gebraii 



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° 



" ATION of Light. By W. Spottiswoode. . . 



of Family Faculties. By Francis Galton 



Stre 



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

 NATURAl, 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 Lubbock 



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

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

 Scientific Evidences of Org.nic Evolution. By 



G.J.Romanes 



TALESof the Birds. By W. Warde Fowler 



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



SANIT.4RY SCIENCE. 



d Ventilation. By Pro- 



6° 



Test them. By R. H. 



Dustbins and Sloppy Streets. By H. P. 

 uln ■ 



Air We Breathe, the, 

 fessor H. A. Mott. 



Bad Drains, and How 

 Reeves. 12° . ... 



Dl] 



Surveying. The Theory of Stadia Meas- 

 By Arthur Winslow. 18° 



id Putrescent Air. By T. Rowan. 8°.. 



Drainage of Towns. By J. Phillips. 8° 



DwELLlNG-HnuSES I 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- 

 son. 8° 



Healthy Foundations for Houses. By Glenn 



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

 16° 



Hou.se Drainage and Sanita.y 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. 

 i8° 



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°.. 



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 Varona. 18° 



Sewerage and Sewage Utilization. By Professor 

 W. H. Corfield. 18° 



Shone Sewerage System. By E. Ault. S° 



Storage of Water. By J. B. Denton. £," 



Ventilation, Mechanics of. By George W. Raf- 

 ter, C.E. 18° 



Water and Water Supply. By Professor W. H. 

 Corfield. 16'= 



