ex 



NATURE 



'{_Feb. 6, 1879 



EDWARD 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 Demon- 

 stration and for SCIENCE SCHOOLS. 



ELECTRIC LIGHT APPARATUS. 

 SIEMEN'S 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. 



PROF. S. P. THOMPSON'S LANTERN 



SLIDE GALVANOMETER, 10s. 



EDISON'S ELECTRIC PEN £8 8s. 

 ELECTRIC and MAGNETIC APPA- 

 RATUS of all Descriptions. 



Nrjj Lllustrated Catalogue of (tO pages post free 6 stamps. 

 Orders over £i carriage paid to any part of the United Kingdom. 



FRYS 



GOLD MEDAL, 

 PARIS EXHIBITION. 



COCOA 



In Packets and Tins. ' Pure 

 Cocoa only, with the super- 

 fluous oil extracted. 



'If properly prepared, there is no nicer 

 or more wholesome preparation of 

 cocoa." — Food, Water, and Air, 

 edited by Dr. Hassall. 



EXTRACT 



J. S. FRY & SONS, Bristol and London. 



HOLLOWAYS PILLS 



THIS 

 MEDICINE 



Is s Certain Cure for aU Disorders of the LIVEE, STOMACH 

 AND BOWELS. A Great PTJEIFIER of the BLOOD; a 

 Powerful Invigorator of the System, in cases of WEAKNESS 

 AND DEBILIIT, and is unequalled in Female Complaint*. 



JOHN NORMAN, 



M.\NUFACTURER OF 



MICROSCOPES, OBJECTS, CABINETS 



TABLES, LAMPS, 



And all Glass Appliances for Microscopes, 



HAS OPENED NEW AND EXTENSIVE PREMISES AT 



123, Queen Victoria Street, E.G. 



Lists post free on application. 



FLETCHER'S 

 PERFECTED GAS FURNACE. 



The simplest and cheapest of all, both ^ '~: , 

 n first cost and in use. Will work with 

 any gas supply 

 from 10 to 100 

 feet per hour, 

 and will fuse [ 

 with ease sub- air 

 stances infusi- 

 ble in any 

 known furnace. 



Prices from ==; 



13s. 6d. 

 Fletcher's New Patent Blowpipe & Perfected Mouthpiece. 



Complete 

 Illustrated 



List on 

 Application. 



THOS. FLETCHER, Museum Street, Warrington. 



HORNE'S POMPEIAN DECORATIONS. 



ROBERT HORNE, 



HOUSE DECORATOR and PAPER-HANGING 



MANUFACTURER, 



41, GRACECHURCH STREET, LONDON, E.G. 



By Special Appointment to His Majesty the King of Italy. 



Just published, 4to, price 'js. 6d., illustrated. 



JOHANNES MULLER ON CERTAIN VARIATIONS IN THE VOCAL 



ORGANS OF THE PASSERES THAT HAVE HITHERTO ESCAPED NOTICE. The Translation by F. Jeffrey 

 Bell. Edited, with an Appendix, by A. A. Garrod, F.R.S. 



Oxford : Printed at the CLARENDON PRESS, and published by MACMILLAN & CO., London, Publishers to the 



University. 



JUST READY, IN 8vo, PRICE 5^. 



STUDIES IN COMPARATIVE ANATOMY, NO. 11. 



THE ANATOMY OF THE INDIAN ELEPHANT. 



By L. C. MIALL, Professor of Biolog>' in the Yorkshire College, 



AND 



- F. GREENWOOD, Curator to the Leeds School of Medicine. 



With Illustrations. 



MACMILLAN AND CO., LONDON. 



