September 26, 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. 

 agriculture:. 



Agricultural Drainage. By J. B. De 



Food Resources of Different Nations. 



L. Simmonds. 12° ■ 



Agriculture. 18° 



Wild-Flowers Considered in Relatioi 



:ts By Sir John Lubbock 



and Chiccory. By P. L. Simmonds. 

 s of Field and Garden Crops, chiefly i 

 re caused by Fungi. By W. G. Sn 



Flowers, Fruits, a 

 Flowers. TheCol 



id Leaves. By Sir John Lub- 



irs of. By Grant All. 



Their Culture, . „ 



and Management in the Garden and Orchard 

 By C. D. 



Flo 



for Ladies, 

 r-Garden. By I 



the 



nd Companion 



rs, J. C. Loudon. 12°. 



:rce, and Uses. By P. 



RE. The Theory of ; or. An Attempt 

 o explain Gardening upon Physiological Prin- 

 iples. By J. Lindley and A. J. Downing 



\GE Irrigation by Farmers. By R. W. Birch. 



nds. 16°. 



By P. L. 



1-25 



architecture: and buiudino 



CONSTKUCTlOiVc 



Architecturr, the Stepping-Stone to. By 



Thomas M itchell. 18° 50 



EoiLRR 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. CE. 18° 50 



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



Fires in Theatres. By E, M. Shaw. 12'=' 1.25 



Gas Fitter's Guide. By J. Eldndge. 12° 40 



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

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



12° 40 



Hot-Water Fitting and Steam Cooking Appa- 

 ratus. By F. Dye. 16° 50 



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

 Strength of Beams under Transverse Loads 



Professor W. Allan. 18° 



Ventilation of American Dwellings. By David 



Boswell Reid, M.D. 12'=' 1 



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

 ASTRONOmCV AND NAVIGATION. 

 Bv Francis Fellowes. 



By 



Astronomy for Begin 



Hou 



yith a Thp 



in Elementary. By R. A. 

 ;-Inch Telescope. By Capt. 



William Noble 



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-Routbs, 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° ... 

 CHEMISTKX. 



Chemical Lecture Notes. By Peter T. Austen. 



mcAL Analysis. By Edgar F. Smith. 



Students. 



Experimental Chemistry for Ju 

 By J. E. Reynolds. 



Part I. Introductory 



Part II. Non-Metals 



Part Til. 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 Adolph Pinner. Tr. and Rev. by Peter T. 



EDUCATION. 



British and Ameriran Education. By Mayo W. 



Hazeltine. 32° 5 



Culturk of the Observing Faculties. By Rev. 



Wairen 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 



High Schools in Denmark. By 



Dr. He 



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° 



Qualitative Analysis and Laboratory Practice, 

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

 tisonMnir. ij" 



Qualitative Chemical Analysis, A Short Course 

 in. By Professor I. M. Crafts and Professor 

 Charles A. Schaeffer. r2° 



Qualitative Chemical Analysis. An Elementary 

 Manual of. By Maurice Perkins. 12° 



Quantitative Analysis. By H. Carrington Bol- 



Chemical Analysis 



By 



Quant 



Thorpe. 18" 



Tables for the Analysis of a Simple Salt for Use 



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



Malle 

 Flow of Water i 



L Open Channels, Pipe; 

 with Tables By P 



, Conduit 

 J. Flyn 



'ith 



Coal-Mil 



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



Spelling Reform from an Educational Point of 

 View. By J. H. Gladstone 



EL.ECTRICIT¥. 



Alternate Current Machinery. By G. Kapp. 



EMISTRY of the Secondary Batteries of Plante 



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

 NAMic Eleclricity. By John Hopkmson, J. A. 



Schoolbred, and R. E. Day. 18° 



namo-Electric Machines, Recent Progress in. 



By Professor Sylvanus P. Thompson. i8° . . . . 



ECTRlc Bells By F. C. Allsop. 12° 



ECTRic Lighting from Central Stations. By G. 



Forbes 



FCTRlciTY, Supply of, by Local Authorities. 



By K. Hedges. 8° 



ectro-Magnetic Telegraph, A Hand-Book of 



the. By A. E. Loring. 18° 



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



C.J.Wharton 



ectro-Telegraphv. By F. S. Beecher. 16°.. 

 :andescent Electric Lights, with Particular 



Reference to the Edison Lamps at the Faris 



Exhibition. By Comte Th. Du Moncel, W. 



H. Preece, J. W. Howeli, and others. iS° . . . . 

 duction Coils : How Made and How Used. 



H. Thur 



lUus 



Stadia Surveying, The Theory of Stadia Me; 

 urement,. By Arthu.- Winsfow. 18° 



Dynamo-Building tor Amateurs. By 



Frederick Walker. 18° 



Terrestrial Magnetism and the Magnetism of 

 Iron Vesse's. By Professor Fairman Rogers. 



EIVGINEEKING. 



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. iS" 



EolLHR Incrustation and Corrosion. By F. J. 



Rowan. iS° 



Bridge and Tunnel Centres. By John B. Mc- 



Master. C.E. 18° 



Bridges, On the Theory and Calculation of Con- 



tin-jous. 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. 



C.E. 

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



Tr. from the French. ib° 



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



iS° 



Fuel. By C. William Siemens, D.C 1. ; to which 



is appended the Value of Artificial Fuel as 



compared with Coal, by John Wormald, C.E. 



18° 



Gases 



By J. J. Atkin- 

 son. IS" 



Helicoiual Oblique Arches, Treatise on the 

 Theory of the Construction of. By John L. 

 Culley, C E. 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 Doux. 18° 



Kinematics ol Machinery. By Professor Ken- 

 nedy. With 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 Wdliam 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. 18'' 



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. 



By 

 the French of M. Leon 



STEAM-Boilor Explo 



Sti-am-Engine Ind: 

 W. 1;. LeVan. 



Seam Injectors. T 



Pochet, 18° . 



Storage Re:ervoirs, On the Designing and Con- 

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



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

 ib° : 



Strength of Wrought-Iron Bridge Members. By 

 S. W. Robinson, C E. 18° 



Testing-Machines, their History, Construction, 

 and Use. By Arthur V. Abbott. iS? 



Theory of the Gas-Engine, The. By Dugald 

 Cleik. 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. ion of Power by Wire Ropes. By Al- 

 bert W. Stahl, U.S.N. 18° 



Turbine Wheels. By Professor W. P. Trow- 

 biidge. 18° 



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

 ley, M.E. 18° 



VoussoiR Arches, A Theory of. By Professor W. 



E. Cait 



VoussoiR Arches £ 



nek. Culverts, 



William Cain, if 



Wheels, A Practical Treatise 



By Professor S. W. Robinso 



ed to Stone Bridges, Tun- 

 1 Domes. By Professor 



the Teeth of. 



MISCEI..I.ANEOITS. 



aphic Method for solving Certain Algebraic 

 Equations. By Professor George L. Vose. iS° 

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

 'E History Album By Francis Gallon. 4° . . . . 



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



laris.ation of Light. Ky W. Spottiswoode. . . 

 CORD of Family Faculties. By Francis Galton. 



Streeter's Gri 



:DiE 



of the World. 



NATUKAIi HISTOKY. 



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 



Sir John Lubbock 



Rennie's Natural History of the Elephant. i8°.. 

 Rennie's Natural 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. 



nd Ventilatii 



Air We Breathe, th. 



fessor H. A. Mott. 160 



Bad Drains, and How to Test th 



Dustbii 

 lulnois. 



By Pro- 

 ByR.' H. 

 ,d Sloppy Streets. By H. P. 



Disease and Putrescent Air. By T- Rowan. S°.. 



Drainage of Towns. By J. Phillips. 8° 



DwELLlNG-HousES I Their Sanitarv Construction 

 and Arrangements. By Professor W. H. Cor- 

 field. 18° 



Fashion in Deformity. By William Henry Flower. 



Food. The 

 Mott 



nposition. Digestibility, and Nu- 

 e of. By Professor Henry A. 



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

 il-SciENCE, A Manual of. By Andrew Wil- 



for Houses. By Gle 



HiN 



16". 





Ho 



By H. P. Bouln 



House Drainage and Sanitary 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. 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. Pany. i" 



Sanitary Works Abroad. By R. M inning. 8°.. 



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



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

 Their Nature and Origin. By A. 



De Va 



Sewerage and Sewage Utilization. By Professor 



W. H. Corfield. 18° 



Shone Sewerage System. By E. Ault. 8° 



Storage of Water. By J. B. De 



By George W. Raf- 



Ventilation, Mech; 



Water and Water Supply. By Professor'wl h' 



