April ii, 1890.] 



Royal Meteorological Society, London. 

 March 19, — G. M. Whipple, A Brief No 

 tice respecting Photograpliy in Relation to 

 Meteorological Work; W. Marriott, Applica- 

 tion of Photography to Meteorological Phe- 

 nomena. After the reading of the papers 

 the meeting was adjourned to allow the fel- 

 lows to inspect the exhibition of instruments, 

 etc., illustrating the application ol' photog- 

 laphy to meteorology. Not only were speci- 

 mens or drawings of nearly every photo 

 graphic meteorological instrument, and rec- 

 ords from the same, shown, but also a most 

 valuable and interesting collection of photo- 

 graphs of clouds and other meteorological 

 phenomena. The photographs of clouds 

 taken by Mons. P. Gamier of Boulogne-sui- 

 Seine were exceptionally fine. A number 

 of new meteorological instruments were 

 also shown, as well as an ingenious working 

 model devised by Mr. A. W. Clay den lor 

 showing the connection between the mon- 

 soons and the currents of the Arabian Sea 

 and the Bay of Bengal. The exhibition 

 ■remained open till Friday, March 21. 



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. 

 AGKICiri.XlIKE. 



By 



Agricultural Drainage. By J. B. D 



Animal Food Resources of Different IS 



P. L. Simmonds. 12° 



Coffee and Chiccory. By P. L. Simmonds. la". 



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



Fruits, Selected : Their Culture, Propagation, 

 and Management in the Garden and Ori;hard. 

 ByC.Downing. 12° 



Gardening for Ladies, and Companion to the 

 Flower-Garden. By Mrs. J. C. Loudon. 12°. 



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

 L. Simmonds. I2° 



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 Utilization. By B Latham. 8° 



Useful Animals and their Products. By P. 

 Simmonds. 16° ■ 



Analysis. By H. Carringti 

 Chemical Analysis. By T 



Bol- 



QUANTITATIVE 



Thorpe. 18° 



Tables for the Analysis of a Simple Salt for Use 

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



ELEOTKICITY. 



Alternate Current Machinery. By G. Kapp. 



iS" 



n.J.A. 



Dynamic Eleciricity. By John Hopkii 



Schoolbred, and R. E. Day. 18° 



Dynamo-Electric Machines, Recent Progress in. 

 By Professor Sylvanus P. Thompson. 18° ... . 



ELF.CTRIC Bells By F. C. Allsop. 12° 



Electric Light Precautions. By K. Hedges. 



Electric Lighting from Central Stat: 



Forbes 



ELECThlCAL Units, Practical. By J. Swinbu 



ByG. 



16°. 



CATAKBH, 



Catarrbal Deafness— Hay 



ARCHITECTURE AND RCII.DING 

 CONSTRUCTION. 



Stepping-Stone to. By 



"Sufferers are not generally aware that these 

 -diseases are contagious, or that they are due to 

 the presence of living parasites in the lining 

 membrane of the no^e and eustachian tubes. 

 Microscopic research, however, has proved this 

 to be a fact, and the result of this discovery is 

 that a simple'remedy has been formulated where- 

 by catarrh, catarrhal deafness and hay fever are 

 permanently cured in from one to three simple 

 applications made at home by the patient once 

 in two weeks. 



N.B. — This treatment is not a snuff or an 

 ointment ; both have been discarded by repu- 

 table physicians as injurious. A pamphlet ex- 

 plaining this new treatment is sent free on 

 receipt of stamp to pay postage, by A. H. Dix- 

 on & Son, 337 and 339 West King Street. 

 Toronto, Canada. — Christian Advocate. 



Sufferers from Catarrhal troubles should care- 

 fully read the above. 



PATENTS. 



Daring ITIarcb, April and May my fees due 



■only on allowance if desired Write 



WM. H. BABCOCK, 



513 Seventh St., Washington, D.C., P. O. Box 220. 



Formerly Examiner in Patent 0£&ce. 



FOURTEEN YEARS' PRACTICE. 



CHITECTURE, the 



Thomas Mitchell. 18° 



ILER and Water Pipes. Kitchi 



ILDING Construction. By Edward J 



By H. Grim- 



Burrell. 



and Steam- 



Chimneys for Furnaces, Firepl 



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. Eldtldge. i2° 



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

 Hot- Water Apparatus, Fixing. By J. Eldridgi 



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.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° 



Strength and Diameter of Electric Conductors. 



By G. Forbes. 8° 



Terrestrial Magnetism and the Magnetism of 



Iron Vesse's. By Professor Fairman Rogers. 



Hot-Water Fitting and Steam Cooking Appa- 

 ratus. By F. Dye. 16° 



Pump Fitter's Guide. By J. Eldridge 



Strength of Beams under Transvers< 

 Professor W. Allan. 18° 



Ventilation of American Dwellingi 



Boswell Reid, M.D. 12° 



Ventilation of Buildings. By W. F. Butler, 



Load 



By 

 By David 



ASTRONOmV AND NAVIGATION. 



Astronomy for Beginners. By Francis Fellowes. 



16°. 



THIS DIAL 



Consials of a strong cnrd- 

 board, hyi by 4 inches, with 

 movable metal hands, and is 

 useful for mothers of infants 

 to record the hour of last nurs- 

 ing, and thus attain regularity 

 in feeding. Serviceable also 

 for teaching time to little 

 children, and as a toy in vari- 

 ons plays. Mailed on receipt 

 of 10 cents, by 



c- BABYHOOD," 



o Beekman Street^ New Tork. 



RUPTURE 



cured in stipulated time. 

 NO DELAY FROM 'WORK. NO OPERATION. 

 Call or send stamp for circular and reference of those 

 cured. We have on hand over 300 styles of trusses, from 

 $1 up, and suspensories of all kinds. Orders filled by 

 snail or express to any part of the United States. 



C. A. M. BURNHAM, M.D., 



138 Ciinton Place, New York. 



Astronomy, Lessons in Elementary. By John 

 Merrifield. 8" 



Hours with a Three-Inch Telescope. By Capt. 

 William Noble. 8° 



M.AGNETlSM 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-Rouths, The Shortest, and Maps for finding 

 them in a Few Seconds (Great-Circle Sailing). 

 By John Merrifield. 4" 



Student's Atlas, The. By John Merrifield. 8°.. 



CHEMISTRY. 



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° 



Experimental Chemistry for Junior Students. 

 By J. E. Reynolds. 



Part I. Introductory 



Part II. Non-Metals 



Part HI. Metals 



Part IV. Chemistry of Carbon Compounds, or 



Organic Chemistry 



Qualitative Analysis and Laboratory Practice, 

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



AiR We Breathe, the, 



fessor H. A. Mott. 



Bad Drains, and How 



Thermo-Electricity, By A. Rust. 8° 



Wrinkles in Electric Lighting. By V. Stephens. 



SANITARY SCIENCE. 



,d Ventilation. By Pro- 



6° 



Test them. By R. H. 



Reeves. 12° 



DiKTY Dustbins and Sloppy Streets. By H. P. 



Boulnois. 12" 



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

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

 ton. 8° 



Drainage ol Towns. By J. Phillips. 8° 



Dwelling-Houses : Their Sanitary Construction 

 and Arrangements. By Professor W. H. Cor- 



field 18° 



b ashion in Deformity. By William Henry Flower. 



Food. The 

 tritive ^ 



Mott 



Health, Th 

 Health-Sci 



Composition. Digestibility, and Nu- 

 ^alue of. By Professor Henry A. 



Laws of. By W. H. Corfield. 8°.. 

 NCE, A Manual of. By Andrew Wil- 



Fo 



Healthy 



Brown. 18° 

 Hints on taking 



dations for Houses. By Glenn 

 By H. P. Boulnois. 

 y Plumbing. By W. 



iMu 



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° 



House Drainage and Sa 



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. 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. 8° 



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



Ventilation, Mechanics of. By George W. Raf- 

 ter, C. E. 18° 



Water and Water Supply. By Professor W. H. 

 Corfield. iS" 



