xlvl 



NATURE 



{June 5, 1879 



FLETCHER'S NEW FURNACE. 



A perfect furnace for all purposes : can be used anywhere, with or without 

 gas. Simple, cheap, not liable to damage, and always ready for instant use. 

 Will fuse 6 lbs. metallic nickel to pour clean. The power is under the most 

 •delicate control, and delicate enamels can be fused in the open flame without 

 protection. It is perfectly adapted for the most precise chemical operations, 

 small forgings, steel and iron castings, &c. , and has been carried about fields 

 for heating rivets for fencing. 



Jlhtstrated List on AJfplication. 

 T. FLETCHER, Museum Street, Warrington. 



DRAPER'S INK (DICHROIC). 



THE NEW BLACK INK 



DIFFERING FROM ANYTHING ELSE EVER PRODUCED. 

 Writing becomes a pleasure when this Ink is used. It has been adopted 

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Ireland. 

 It writes almost instantly Full Black, j Flows easily from the Pen. 

 Does not corrode Steel Pens. Blotting-paper may be applied at the 



Is cleanly to use, and not liable toBlot. | momeDt of writing. 



Can be obtained in London, through Messrs. Barclay & Sons, Faning- 

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BEWLEY & DRAPER (Limited), Dublin. 



L'ELECTRIGITE 



IVevuo sclentlAque illustree 



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T6Mgraphio. — Galvanoplastie.— Meteorologie.— Medecine 

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OnaAKB SPECIAL DES PHOGRJIS DS LA LUMI6KE ELECTRIQUE 



Publication redigee depuis 1876 avec la collaboration des 



principaux eleotnciens fran?ais et etrangers. 



Secretaires da la Redaction : W. dk Fonviklle et le C" d'Arros. 



Directeur ; E. db Glisson. 



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value and upwards. 



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The LANCASTER POCKET CAMERA 



for plates 4I X 3J inch, having three double dry-platc Slides, Umbrella 

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The LANCASTER CARTE PHOTOGRA- 

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EAGLE INSURANCE COMPANY, 



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 For Lives only. Established 1807. 



Net Premiums and Interest ™ ... ._ ;C 396.8 18 



Accumulated Funds ... .« ' .« ;£3,o83.28j 



Also a Subscribed Capital of more than .^1,500.000 



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GEORGE HUMPHREYS, Actuary and Secretary. 



BARTON'S 

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With Thermometer. Dial is divid«J off to 

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 Each instrument tested in presence of cus- 

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Illustrations and Prices on Application. 



F. DARTON & CO., Makers, 



45, ST. JOHN STREET, E.C 

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EDWARD PATERSON, 



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3, BEDFORD COURT, COVENT GARDEN, LONDON. 



STEAM WORKS, GRAY'S INN ROAD. 



Experiments in Electric Lighting carried ont 



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APPARATUS FOR CLASS Demon- 

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•A- 



i 



THE ENTOMOLOGIST'S MONTHL 

 MAGAZINE. 



Price Sixpence, Monthly, 34 pages Svo, with occasional Illustrations. 



Conducted by J. W. Douglas, R. McLachlan, F. R.S., E. C. Ryk, F.Z.S. 



and H. T. Stainton, F.R.S. 



This Magatine, commenced in 1864, contains standard articles and notes 



on all subjects connected with Entomology and especially on the Insects ol 



the British Isles. 



Subscription— Six Shillings per Volume, post free. The volumes com. 1 

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Vols. I. to V (strongly bound in cloth) may be obtained by purchasers ol 

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 London: JOHN VAN VOORST, i. Paternoster Row. 

 N. B.— Communications, &c., should be sent to the Editors at the abon 

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