ADVEETISEMENTS. 



Just published, post 8vo, cloth boards, 6e., 

 A NEW AND HEVISED EDITION OF THE 



NATUEAL HISTORY OE SELBORNE. 



BY THE REV. GILBERT WHITE, A.M. 



Arranged for Young Persons, With numerous engravings drawn 

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Society for PROMOiiNa Christian Knowledgii :— Deposi- 

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Now ready, second edition, price 8». 6d., 



THE DICTIONARY OF CHEJillSTRY, 



With its applications to Mineralogy, Physiology, and the Arts. 



BY ROBERT DUNDAS THOMSON, M.D., P.R.S., L.&E., F.C.S., 



Professor of Chemistry at St. Thomas's Hospital College, 

 London. 



" Its completeness and correctness recommend the Dictionary 

 of Chemistry." — AtheneBum. 



" In a form most useful for reference and suitable for study."— 

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"A practical publication, in the highest degree valuable."— 

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" The best compendium of Chemistry that we have yet seen.''— 

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KiCHAED Geiffik & Co., London and Glasgow. 



Attached a specimen of non-inflammable Muslin. Price 6d., 



f\N THE COMPAEATIYE VALUE OF CER- 



\J TAIN SALTS for rendering FABRICS NON-INFLAM- 

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MANY HAPPY RETURNS OF THE DAY! 



BY CHAELES AND MARY COWDEN CLARKE, 



Is the most attractive birthday book ever published. Beautifully 

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Fourth Edition, in One Tol., 500 Woodcuts, 8vo (910 pp.), £1 4« 

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A MANUAL OF ELECTRICITY. 



Including Galvanism, Magnetism, Dia-magnetism, Electro-Dyna- 

 mics, Magno-Electricity, and the Electric Telegraph. 



By HENRY M. NOAD, Pn.D., F.C.S., 

 Lecturer on Chemistry at St. George's Hospital. 

 " On the subject of electricity, it is a service second only to dis- 

 covery, when one competent for the task undertakes to sift and re- 

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London : Lockwood & Co., 7, Stationers' Hall Court, B.C. 



GOODCHILD'S 



T R O C HEjDOS C O P E. 



An Optical Instrument upon an entirely novel principle, for exhibit- 

 ing many beautiful effects of Combinations of Colour, Coloured 

 Devices, Jewellery, Sutterjlies, Decorations, etc. etc. ; forming an ele- 

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 for the Drawing-room or the Study of the Optical Investigator ; 

 invaluable to all interested in harmony of colours, for whatever 

 purpose, and affording numberless suggestions to designers of 

 patterns for Fabrics— the results being as numerous and as brilliant 

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" Tinges the perforations with the most elaborate colourings.'' 

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" Devices, Fruit, Flowers, Patterns for Dresses, etc., may be 

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"The marvellous changes of colour the Inventor produces by a 

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" Many original and beautiful effects are produced ; and as it 

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" Supersedes the Colour-Top, and promises to be as popular as 

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MADK AND SOLD BY 



HOENE & THORNTHWAITE, 



OPTICIANS, 



IpIjHosopIjwal ^ ^I^otograpljk Instrument pakers 



TO HER MAJESTY, 



121, 122, & 123, NEWGATE STEEET, 

 LONDON, E.G. 



Price, in neat polished Mahogany Case, with an assort- £ «. d. 



ment of Discs, and Book of Instructions 2 2 



Extra Discs, per dozen 7 6 



An Illustrated Descriptive Pamphlet forwarded. Post Free, on 

 receipt of Seven Stamps, either from Messrs. HoBifs & Ihobm> 

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