4j9^ 



NOTES AND QUERIES. 



[No. 268. 



TTYLO-IODIDE OF SILVER, exclusively used at all the Pho- 



J\_ toitraph'c Establishments. — The superiority of this preparation is now universally ac- 

 knowledged. Testimonials from the best Photographers and principal scientific men of the day, 

 warrant the assertion, that hitherto no preparation has been discovered which produces 

 ujriforraly such perfect pictures, combined with the greatest rapidity of action. In all cases 

 where a quantity is required, the two solutions may be had at Wholesale price in separate 

 Bottles, in which state it may be kept for years, and Exported to any Climate. Full instructions 

 for use. 



Caution. —Each Bottle is Stamped with a Bed Label bearing my name, EICHAKD W. 

 THOMAS; Chemist, 10. Pall Mall, to counterfeit which is felony. 



CYANOGEN SOAP : for removing all kinds of Photographic Stains. 



The Genuine is made only by the Inventor, and is secured with a Red I-ahel bearing this Signature 

 and Address, RICHARD W. THOMAS, CHEMIST, 10. PALL MALL, Manufacturer of Pure 

 Photoeraiihic Chemicals ; and may be procurpd of all respectable Chemists, in Pots at l«., 2s., 

 and 3». 6rf. each, through MESSRS. EDWARDS, 67. St. Paul's Churchyard) and MESSRS. 

 BARCLAY & CO., 95. Farringdon Street, Wholesale Agents. 



WHOLESALE PHOTOGRA- 

 PHIC AND OPTICAL WARE- 

 HOUSE. 



J. SOLOMON, 22. Red Lion Square, London. 

 Depot for the Pocket Water Filter. 



THE IODIZED COLLODION 

 manufactured by J. B. HOCKIN & CO., 

 289. Strand. London, is still unrivalled for 

 SENSITIVENESS and DENSITY OF NE- 

 GATIVE ; it excels all others in its keeping 

 qualities and uniformity of constitution. 



Albumenized Paper, 17i by 11 , 5s, per quire. 

 Ditto, Waxed, 7.'., of very superior quality. 

 Double Achromatic Lenses EQIJ/> L IN ALL 

 POINTS to those of anv other Manufacturer : 

 Quarter Plate, 2?. 2s. ; Half Plate, bl. : Whole. 

 \0l. Apparatus and Pure Chemicals of all 

 Descriptions. 



Just published, 



PRACTICAL HINTS ON 



PHOTOGRAPHY, by J. B. HOCKIN. Third 

 Edition. Price Is. ; per Post, 1«. id. 



Just published. 



PRACTICAL PHOTOGRA- 

 PHY on GLASS and PAPER, a Manual 

 containing simple directions for the production 

 of PORTRAITS and VIEWS by the agency 

 of Licht, including the COLLODION, AI>- 

 BUMEN, WAXED PAPER and POSITIVE 

 PAPER Processes, by CHARLES A. LONG. 

 Pru^ Is. ; per Post, \s. 6d. 



Published by BLAND & LONG, Opticians, 

 Philosophical and Photographical Instru- 

 ment Makers, and Operative Chemists, 153. 

 Fleet Street, London. 



nOLLODION PORTRAITS 



\J AND VIEWS obtained with the greatest 

 ease and certainty by using BLAND & 

 LONG'S preparation of Soluble Cotton ; cer- 

 tainty and uniformity of action over a length- 

 ened period, combined with the most faithful 

 rendering of the half-tones, constitute this a 

 most valuable agent in the hands of the pho- 

 tographer. 



Albumenized paper, for printing from glass 

 or paper negatives, giving a minuteness of de- 

 tail unattained by any other method, 5s. per 

 Quire. 



Waxed and Iodized Papers of tried quality. 



Instruction in the Processes. 



BLAND & LONG, Opticians and Photogra- 

 phical Instrument Makers, and Operative 

 Chemists, 153. Fleet Street, London. 



The Pneumatic Plate-holder for Collodion 

 Plates. 



«•* Catalogues sent on application. 



THE SIGHT preserved by the 

 Use of SPECTACLES adapted to suit 

 every variety of Vision by means of SMEE'S 

 OPTOMETER, which effeetuallj; prevents 

 Injury to the Eyes from the Selection of Im- 

 proper Glasses, and is extensively employed by 



BLAND & LONG, Opticians, 153. Fleet 

 Street, London. 



PHOTOGRAPHIC CAMERAS. 



OTTEWILL AND MORGAN'S 



Manufactory, 24. & 25. Charlotte Terrace, 

 Caledonian Road, Islington. 



OTTEWILL'S Re;;istered Double Body 

 Folding Camera, adapted for Landscapes or 

 Portraits, may be had of A. ROSS, Feather- 

 stone Buildines, Holborn ; the Photographic 

 Institution, Bond Street ; and at the Manu- 

 factory as above, where every description of 

 Cameras, Slides, and Tripods may be had. The 

 Trade supplied. 



PHOTOGRAPHIC LENSES ; 

 made by J. T. GODDARD, Jesse Cot- 

 tage, Whitton, Isleworth, London. 



Achromatic combinations of lenses of 2} in. 

 diameter, elegantly mounted in brass with 

 rack and pinion adjustment, giving portraits 

 up to 4^ in., and landscapes to about 5 in. 

 Price .3?. 3s. This combination has a rapidity 

 of action equal to our 3J in. instrument of 

 seven guineas, and is well suited for profes- 

 sional or amateur use. Testimonials from 

 professional artists may be inspected. 



WHOLESALE PHOTOGRA- 

 PHIC DEPOT. 

 DANIEL M'MILLAN, 

 132. FLEET STREET, LONDON. 



Price List Free on Application. 



INSTRUCTIVE CHRISTMAS 



JL AND NEW YEAR'S GIFTS. 



ELEMENTARY PHOTOGRAPHIC AP- 

 PARATUS, IN CASE, with Instructions for 

 Use, 10s. andl2«. 



ELECTRO-CHEMICAL APPARATUS, 

 IN CASE, with Instructions, 7s. and 10s. 



CHEMICAL INSTRUCTION AND 

 AMUSEMENT CHESTS, bs. 6d., 7«. nd., 

 10s. 6d., and 21s. 



EIEMFNTARY COMPOUND MICRO- 

 SCOPE, with Instructions, 10s., 16s., and 20s. 



THE STEREOSCOPE, with VIEWS and 

 Instiuctions, 7s. 6rf. and lOs. 6d. 



ELEMENTARY ELECTRICAL MA- 

 CHINE AND JAR, with Instructions, 12s. 6d. 



MATHFMATICAL DRAWING IN- 

 STRUMENTS, IN CASES, 3s. 6di, 6s. 6rf., and 

 9s. 6d. 



TELESCOPES, IN CASES, ds. 



OPTICAL (OR MAGIC1 LANTHORN, 

 AND SLIDES, with Instructions, 9s. 



POLYORAMA AND VIEWS,: 12s. and 

 17s. fti. 



E. G. WOOD, Optician, and Manufacturer of 

 Philosophical Apparatus, 117. Cheapside, 

 London, late of 123. Newgate Street. 



See Elementary Scientific Papers on the 

 above subjects by E. G. WOOD, free by Post 

 on receipt cf Postage Stamp. 



Orders by Post, containing Remittances or 

 Reference in London, promptly attended to. 



Second Edition, with large map, price 5s., 

 cloth boards. 



PRIZE ESSAY ON PORTU- 

 GAL. By JOSEPH JAMES FOR- 

 RESTER, of Oporto, r.R.G.S. of London, 

 Paris, Berlin, &e.. Author of " Original Sur- 

 veys of the Port Wine Districts;" of the 

 " River Douro from the Ocean to the Spanish 

 Frontier ; " and of the " Geology of the Bed 

 and Banks of the Douro ; " also of a projectfor 

 the improvement of the navigation of that 

 river, and of various other works on Portugal. 

 JOHN WEALE, 59. High Holborn. 



Just out, may be had gratis (by Post, for One 

 Stamp). 



n SKEET'S CATALOGUE, 



\ Jt Part VII., containing a Selection of 

 Useful and Interesting Books, in all Ciastes of 

 Ancient and Modern Literature, at moderate 

 prices, mav be SEEN APPENDED to the 

 GENTLEMAN'S MAGAZINE for DE- 

 CEMBER. 

 10. KING WILLIAM STREET, STRAND. 



PHOTOGRAPHY. — HORNE 

 & CO.'S Iodized Collodion, for obtaining 

 Instantaneous Views, and Portraits in from 

 three to thirty seconds, according to light. 



Portraits obtained by the above, for delicncy 

 of detail, rival the choicest Daguerreotypes, 

 spei'imens of which may be seen at their Esta- 

 blishment. 



Also every description of Apparatus, Che- 

 micals, &c. &c. used in this beautiful Art — 

 123. and 121. Newgate Street. 



BENNETT'S MODEL 

 WATCH, as shown at the GREAT EX- 

 HIBITION. No. 1. Class X., in Gold and 

 Silver Cases, in five qualities, and adapted to 

 all Climates, may now be had at the MANU- 

 FACTORY, 65. CHEAPSIDE. Superior (Jold 

 London-made Patent Levers, 17, 16, and 12 

 guineas. Ditto, in Silver Cases, 8, 6, and 4 

 guineas. First-rate Oeneva I<everF, in (iold 

 Cases, 12, 10, and 8 guineas. Ditto, in Silver 

 Cases, 8, 6. and 5 guineas. Superior l/ever,\iith 

 Chronometer Balance, Gold. 27, 23, and 19 

 guineas. Bennett's PocketChronometer.GoId, 

 50 L'uinens ; Silver, 40 guineas. Every Watch 

 skilfully examined, timed, and itsperfirmnnce 

 guaranteed. Barometers, 2/., 3Z., and 4i. Tter- 

 mometers from Is. each. 



BENNETT. Watch, Clock, and Instrument 

 Maker to the Royal Observatory, the Board of 

 Ordnance, the Admiralty, and the Queen, 

 65. CHEAPSIDE. 



PIANOFORTES, 25 Guineas 

 each. - D'ALMAINE & CO., 20. Soho 

 Square (established a.d. 178.51, sole manufac- 

 turers of the ROYAL PIANOFORTES, at 25 

 Guineas each. Ever}' instrument warranted. 

 The peculiar advantages of these pianofortes 

 are best described in the following profi-ssional 

 testimonial, signed by the majority of the lead- 

 ing musicians of the age : — " We. the under- 

 signed members of the musical profession, 

 having carefully examined the Hoyal Piano- 

 fortes manufactured by MESSRS. D'AL- 

 MAINE & CO., have great pleasure in bearing 

 testimony to their merits and capabilities. It 

 appears to us impossible to produce instruments 

 of the same size possessing a r'cher and finer 

 tone, more elastic touch, or more equal tem- 

 perament, while the elegance of their construc- 

 tion renders them a handsome ornament for 

 the library, (ioudoir,ordrawing-room. (Signed) 

 J. L. Abel, F. Benedict, H. R. Bishop, J. Hlew- 

 Ut, J. Brizzi, T. P. Chipp, P. Delavanti, C. H. 

 Dolby, E. F. Fitzwilliam, W. Forde, Stephen 

 Glover, Henri Herz, E. Harrison, H.F. llasse, 

 J. L. Hatton. Catherine Hayes, W. H. Holmes, 

 W. Kuhe, O. F. Kiallmark, E. I,and, O. Lanza, 

 Alexander Lee, A. Leffler, E. J. Loder. W. H. 

 Montgomery. S.Nelson, O. A. Osborne, John 

 Parry, H. Panof ka, Henry Phillips, F. Praegar, 

 E. F. Rimbault. i rank Romer, G. H. Kodwell, 

 E. Rockel, Sims Reeves, J. Templeton, F. We- 

 ber, H. Westrop, T. H. Wright,^' &c. 



D'ALMAINE & CO., 20. Soho Square. Lists 

 and Desisns Gratis. 



