CXCIV 



NA TURE 



\Oct. 9, 1879 



OROIDE GOLD JEWELLERY. 



(REGISTERED.) 



(REGISTERED.) y/jfi Qf^\y Perfect Substitute for 18-Carat Gold. 



ILLUSTRATED PRICELLSTS POST-FREE. 

 MAGNETIC COMPASS CHARMS, 



For Appendages to Watch-Chains, combining a reliable Compass, Magnifier, and Burning-glass; 

 best quality, and in fine geld patterns, Ss. Sd. and 10^. 6d. Free per registered post. 



WATCHES. 



The Cases of these are very handsome and in exact representation of those of the best-made iS- 



carat Watches ; the movements are thoroughly rehable, and constructed to perform for at leat 



twenty-five years. Open face, from ■2\s. Hunters, from 30^-. Per registered post, (>d. extra. 



ALBERT CHAINS, 



Perfect in finish, and embracing all the best 18-carat gold designs, 10^, dd.', smaller patterns, ^s. 



and IS. 6d. Post-free. 



F. 0. 0. payable at Exhtbiiion Road, South Kensington. 



C. C . ROWE, 88, BROMPTON ROAD, LONDON. 



W. LADD 8c CO., 



SCIENTIFIC INSTRUMENT MANUFACTURERS 



(By Appointment to the Royal Instiltition of Great Britain), 



II AND 12, BEAK STREET, REGENT STREET, W. 



IMPROVED HOLTZ ELECTRICAL MACHINES, with 4 to 24 Plates. Immediately available in any condition of the atmosphere, 



LADD'S DYNAMO-MAGNETO MACHINE and GRAMME'S MAGNETO-ELECTRIC MACHINE for Laboratory use. 



Physical Apparatus of every Description. 

 ILLUSTRATED CATALOGUE, SIXPENCE. 



THE TELEPHONE COMPANY, LIMITED, 



36, COLEMAN STREET, LONDON, E.G. 



TESTIMONIALS. 



14S to 149, Tottenham Court Road, London, JV., l^h May, 1879 

 To the Telephone Company, Limited, 36, Coleman Street, E.C. 



Dear Sirs, — You will be pleased to hear that the forty Telephones you supplied answer admirably, and are of great con- 

 venience, communicating as they do in some cases with our workshops a mile away. 



The simplicity and ease with which they work, being able to be used by any one, and the great advantage over the Telegraph 

 system in rapid communication and recognition of the voice, must create a great demand for Telephones everywhere. — We remain, 

 dear Sirs, yours faithfully, (Signed) J. MAPLE & Co. 



Midland Railway Telegraph Department, Superintendents Office, Derby, 2StA April, 1879 



Dear Sirs, — In reply to your inquiry of the 25th inst., I have the pleasure to inform you that the Telephones which have 

 been erected on the Midland Railway are working very satisfactorily. — Yours faithfully, {Sighted) W. LANGDON 



The Telephone Company, 36, Coleman Street, London, E. C. 



Appt,ication for Price Lists or further information to be made to the MANAGER. 



NEW ILLUSTRATED CATALOGUE of ELECTRIC 



SIGNALS, &c., with Instructions for Fixing. 150 Diagrams. Just out, 

 post free, 6 Stamps. 



ED\A/ARD PATERSON, 



Electrical Engineer and Scientific Apparatus Manufacturer, 



3, BEDFORD COURT, COVENT GARDEN, LONDON 



STEAM WORKS, GRAY'S INN ROAD. 



Experiments in Electric Lighting carried out. 



Electrical Apparatus of all Descriptions for Lecture Purposes Loaned out. 



APPARATUS for CLASS DEMONSTRATION and for SCIENCE 



SCHOOLS. 

 ELECrRIC LIGHT APPARATUS. 

 SIEME.VS and GRAMME'S DYNAMO MACHINES and LAMPS 



for Hire and Purchase. 

 LARGE ASSORTMENT of RUHMKORFF COILS and VACUUM 



TUBES. 

 PROFESSOR HUGHES' MICROPHONE. 

 ELECTRIC BELLS and INDICATORS. 

 TELEPHONES and TELEPHONE CALL BELLS, WIRE, &c., for 



Fixing. 

 EDISON^S ELECTRIC PEN £1, 81. 



ELECTRIC and MAGNETIC APPARATUS of all Descriptions. 

 Illustrated Catalogue Electrical Apparatus, Part i. Post free, 6 Stamps, 

 do do Electric Signals, Part 2. Post free, 6 Stamps. 



FLETCHER'S 

 SOLID FLAME BURNER. 



FOR COOKING, LABORATORY WORK, 



SMALL STEAM ENGINES, 



ZINC AND LEAD MELTING, &c. 



The most perfect burner known, will burn in one SOLID 

 flame any quantity of gas, and is by far the cheapest both in 

 first cost and economy of gas. Made in all sizes, in both brass 

 and iron for all purposes. 



ILLUSTRATED LIST ON APPLICATION. 



ALSO OF 



GAS FURNACES FOR ALL PURPOSES, 



INSTANTANEOUS WATER HEATERS, 



HOT AND COLD BLAST BLOWPIPES, 



AUTOMATIC FOOT AND HAND BLOWERS, &C. 



THOS. FLETCHER, 



MUSEUM STREET, WARRINGTON. 



HOLLOWAYS PIUS 



THIS 

 MEDICINE 



Is a Certain Cure for all Disorders of the LIVEB, STOMACH 

 AND BOWILS. A Great PUBIFIEE of the BLOOD; • 

 Powerful Inyigorator of the System, in cases of WEAKNESS 

 LSJi SSBUJIT, and is uneanalled in female Complainti. 



