SCIENCE. 



[Vol. XV. No. 2>7i 



Our New Salesrooms. 



Last week we invited attention to the new 

 Salesroom in the basement, and to the sale there 

 of Silks and Dress Goods, at very moderate 

 prices. 



This week we mention the extensive altera- 

 tions and additions on the Second Floor of our 

 store, which give greatly increased facilities in 

 our Dress-making Department for Ladies, Misses, 

 and Children, 



The space occupied by the stocks of Black 

 Goods and Cloths has been noticeably enlarged; 

 and the room for Ladies' Underwear and for 

 Infants' Goods nearly doubled. 



Visitors will find a new elevator near the 

 Broadway door. 



JAMES McCEEERY & CO. 



BROADWAY AND ELEVENTH STREET, 



NEW YOKK. 



INDIA PONGEES, rORAHS. 



TWENTY-EIGHT MILLIONS OF 



DOLLARS and over is the value given 

 by the Collector of Customs for the 

 commerce of the Portof Superior, Wis., 

 for 1889. In 1888 the valuation was 

 less than ten millions of dollars. 



WEST SUPERIOR, Wis., 



is a four-year-old city of 10,000 people, 

 at the extreme west end of Lake Su- 

 perior. Its population has more than 

 doubled in 1889. Joaquin Miller be- 

 lieves it is destined to outstrip Chicago 

 in growth, and will rank with ISTew 

 York as a commercial, fnuancial and 

 manufacturing center. It is worth in- 

 vestigaiion if half of this is so; for in- 

 vestors in real estate and mortgage 

 loans can realize large profits in such 

 growing towns. Information regard- 

 ing West Superior and vicinity will be 

 gladly given by 



JAMES W. GREENE, 

 West Superior, Wis. 



He refers by permission to the Editor 

 of Science. 



LOW-PRICED BOOKS. 



Any of ihe fol-lowirg low-priced books will be 

 mailed postpaid on receipt of price. 



SCIENCE BOOK AGENCY, 



47 Lafayette Place, New York. 



AGK8CIH.TIIRE. 



Agricultural Drainage. By J. B. Denton, l". $i 20 

 Animal Food Resources of Different Nations. By 



P. L. Sii 



nds. 



% 



New and fresh Spring Styles ttc. '''^*A 

 added to our stock of these desirau. ' 

 fabrics, unr.valed for wear. 



JAPANESE STRIPE SILKS. 



Very cool and pleasant for Summer 

 Dress. 



PHYSICAL, ELECTRICAL 

 AND CHEMICAL 



APPARATUS 



Of High Grade. 



Coffee and Chiccory. By P. L. Sii 



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



Fruits, Selected: Their Culture, Propagation, 



and Management in the Garden and On hard. 



ByC.Dowmng. ,2° . 



Gardening for Ladies, and Companion to the 

 By Mrs. J. C. Loudon. iv°. 

 Commerce, and Uses. By P. 



. Flower-Gardi 

 Hops : Cultivation, 



L. Sim.i.onds, 

 Horticulture. Thi 

 to e.^plain Card: 

 ciples. By J. 



Theory of ; or. An Attempt 

 ling upon Physiologic.il Prin- 

 .indley and A. J. Downing 



AGE Irrigation by Farmers. By R. W. Birch. 



Us; 



: Utilization. By B Latham. S° 



Animals and their Products. By P. 



nds. 



AKCHITECTCJKE AND BUILDING 



CONSTRlICiriON. 



Architectijef, the Stepping-Stone to. By 



Thomas Mitchell. 18° 5 



BoiLRR and Water Pipes, Kitchen. Bv H. Grira- 



shaw. k° ^ 



Building Construction. By Edward J. Burrell. 



i-° 8 



Chimneys for Furnaces, Fireplaces, and Steam- 



Boilers. By K. Armstrong, C.E. 18°... r< 



Cooking Riinge, The. By F. Dye. 12° .' 'J 



Fires in Theatres. Bv E M. Shaw. 12° i 2 



Gas Fitter's Guide. By J. Eldiidge. 12° '4, 



Hot-Wath-r Apparatus, Fitting. By F Dye 12° i.oi 

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



Hot-W 



Fitting and Steam Cor 



tus. By F. Dye. if° 



Fitter's Guide. By J. Eldridge. 



king Appa- 



Loads. By 

 Dwellings' ■ By ijavid 

 By-W. F.Butler.' 18° 

 ELECTKICITV. 



By G. Kapp. 



ssor W. Allan 

 nON of A: 

 ell Keid, M.D. 

 riQN of Buildings 







Jdt00u)W0iU cAj 



NEW YORK. 



I^tfe 61 



CHANCE FOR ALL 



To Enjoy a Cup of Pcrfoct 

 Tea. A TRIAL OROER of; 1 , 



pounds of Fine Tea, either Oolong- J;>- 

 pun. Imperial. Gunpowder. Yount? Hy- 



S2 00. Be partioularand state whal'kind 

 of Tea you want. Greatest inducement 

 e V er offered to get orders for our cele- 

 nd Baumtr Powder. For full partieu 



brated Teas, CofTes: 



larsiidrtiets THE GREAT AMERlbAN 'TEATO.' 

 P. O. Box 289. 31 and 33 Vesey St. , N. 



MINERALS. 



Cabinet Specimens and Coiiections. 



Our stocir is very complete in fine specimens for 

 the connoisseur, as well as cheaper specimens tor tire 

 student and amateur. Complete Catalogue Free. 

 GEO. li. ENGI.ISH & CO., 



Dealers in Minerals, 

 1512 Chestnut Street, Philadelphia, Pa. 



/% 



_ fifSo ".iMOOLS AKD COLLEGES, 

 Send foe List of Catalogues. 



fiUEEN & CO, PMladelpliia. 



IMPROVED OIL LIGHT 



MAGIC LANTERNS. 



A/so Lime and Electnc Light Apparatus, and 



mechanical, plain, and fine colored views. 



J. B. COLT & CO., Manufacturers, 



No. 16 Beekman Street, New York. 



PATENTS. 



During Marcli, April and May my fees due 



only on allowance if desired. Write 



WM. H. BABCOCK, 



513 Seventh St., Washington, D.O.. P. O. Bos 220 



Formerly Examiner in Patent Ofaoe. 



FOURTEEN YEARS' PRACTICE. 



, By John Hopki 

 Schoolbred. and R. E. Day. 18°.. 



o-Electric Machines, Recent Progr. 



,J. A. 



By Professor Syl" 

 Elfcteic Bells By F. C. Allsop. 

 Electric Light Precautions. By 





iS°. 



: Lighting from Centr 



Units, Practical. 



. Hedges. 

 .1 Stations. By G. 

 By J. Swinburne. 



Elfctricity. Supply of, by Local Authorities. 



By K. Hedges. »° 



Electeo-Magnktic Telegraph, A Hand-Book of 



the. By A. E. Loring. 18°. 



Magnets. By Th. Du Moncel. Tr. by 



J.Wharton 



i-Telecraphy. By F. S. Beecher. 16°.' 



Incandescent Electric Lights, with Particular 



Reference to the Edison Lamps at the r'aris 



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



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



Induction Coils : How Made and How Used. 



■ of Electric Conductors. 



Stee~gth and Di 



By G. Forbes. 

 Tekrestrial Magnetism and the Magnetism of 



Iron Vessels. By Professor Fairman Rogers. 



The 



-Electricity. By A. Rust. 8° 



ES in Electric Lighting. By V. Stephe 



Air We Breathe, tl 



fessor H. A. Mo 



Bad Drains, and H( 



Boulnois. 

 Disease and P 



Do.AIESTIC Filti 



ton. 8°... 



Drainag 



SANITARY SCIENCE. 



and Ventilation. By Pro- 



i6° 



to Test them. By R. H. 



d Sloppy Streets. By H. P. 



. By T. Rowan, 

 f Water. By E. F. B. 



By J. Phillips. 8°.... 

 heir Sanitary Constru 

 . By Professor W. H. 



Readers of Science 



Correspondi}ig with or visiting Advertisers 

 will confer a great favor by mentioning the paper. I Health, The Laws of." By "W.' H.' Corfieid! "%'.'. 



of Town 



DWELLING-HOUSES 



and A: 

 field. 

 Food, The Composition, Digestibility, 

 tritive Value of. By Professor I 

 Mott. 



