Nov. 27. 1852.] 



NOTES AND QUERIES. 



523 



GUTTA PERCHA TUBING- 

 —Many inquiries having been made as 

 to tlie durability of this tubing, the Gutta 

 Pcrcha Company liave pleasure in drawing 

 attention to the following letter, received from 

 Mr. C. Hacker, Surveyor to the Duke of Bed- 

 ford:— 



" Office of Works, Wobum Park. 

 Jan 10, 1862. 



" In answer to your inquiries respecting the 

 Gutta Pereha Tubing for Pump Suctions, I find 

 that the water has n-t affected it in the least, 

 although it will eat lead through in two years ; 

 we have adopted it largely on account of being 

 cheaper than lead, much easier fixed, and a 

 more perfect job. 



" Yours, &c. C. HACKER." 



N.B. The Company's Illustrated Circulars, 

 containing instructions to plumbers for joining 

 tubes, lining tanks, &c., will be forwarded on 

 the receipt of three postage stamps. 



THE GUTTA PERCHA COMPANY, 

 Patentees, 18. "Wharf Road, City Road, Lon- 

 don. 



w 



ESTERN LIFE ASSU- 

 RANCE AND ANNUITY SOCIETY, 



3. PARLIAMENT STREET, LONDON. 

 Founded A.D. 1842. 



Directors. 



H. Edgeworth Bicknell, Esq. 



"William Cabell, Esq. 



T. Somers Cocks, .Jun. Esq. M.P. 



G. Henry Drew, Esq. 



"William Evans, Esq. 



"William Freeman, Esq. 



F. Fuller, Esq. 



J. Henry Goodhart, Esq. 



T. Grissell, Esq. 



James Hunt, Esq. 



J. Arscott I-ethbridge, Esq. 



E. Lucas, Esq. 



James Lys Seager, Esq. 



J. Basley "White, Esq. 



Joseph Caiter Wood, Es(l. 



Tmsiees. 



"W. "Whateley, Esq., Q.C. 

 L. C. Humfrey, Esq., Q.C. 

 George Drew, Esq. 



Consulting Counsel. — Sir Wm. P. Wood, M.P. 



Physician William Rich. Basham, M.D. 



£a»(fcers.— Messrs. Cocks, Biddulph, and Co., 



Cliaring Cross. 



VALUABLE PRI"7ILEGE. 



POLICIES effected in this Office do not be- 

 come void through temporary difficulty in pay- 

 ing a Premium, as permission is given upon 

 application to suspend the payment at interest, 

 according to the conditions detailed La the Pro- 

 spectus. 



Specimens of Rates of Premium for Assuring 

 100«., with a Share in three-fourths of the 

 Profits:— 



Age 

 17- 



£ s. d. 

 ' 1 14 4 



■ 1 18 8 



Age 



£ s. d. 



- 2 10 8 



- 2 18 6 



ARTHUR SCRATCHLEY, M.A., F.R.A.S., 



Actuary. 



Now ready, price IDs. 6rf., Second Edition, 

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 VESTMENT and EMIGRATION; being a 

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 &c. With a Mathematical Appendix on Com- 

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" When Greeks jom'd Greeks, then was the tug 



of war." 



Recently published, 12mo. cloth, price as. 6d. 



rVUE BOOK OF FAMILIAR 



J. QUOTATIONS, containing the hack- 

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WHITTAKER & CO. 



/CLASSICAL EDUCATION IN 



\^ FRANCE. — A married gentleman, of 

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Address H. I. D., Azotes and Queries Office, 

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E 



AU - DE - VIE. — This Pure 



PALE BRANDY b of a peculiarly 



wholesome character, possessing all the virtues 

 of the finest old COGNAC, without its acidity : 

 and equally well enduring the ordeal of cold 

 or hot water. In French bottles with French 

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 by the imperial gallon. Only the immense 

 consumption consequent upon universal ap- 

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 " EAU-DE-VIE " at half the price usuaily 

 charged for the coarse whisky-flavoured spirit 

 so largely imported under that denomination. 



HENRY BRETT and Co., 

 Old Fumival's Distillery, Holbom. 



H 



EAL AND SON'S EIDER 



DOWN QUILTS are made in three 

 Varieties,- the BORDERED QUILT, the 

 PLAIN QUILT, and the DUVET. The 

 Bordered Quilt is in the usual form of Bed 

 Quilts, and is a most elegant and luxurious 

 article. The Plain Quilt is smaller, and is 

 useful as an extra covering on the bed, as a 

 wrapper in the carriage, or on the couch. The 

 Duvet is a loose case filled with Eider Down 

 as in general use on the Continent. Lists of 

 Prices and Sizes sent free by Post, on applica- 

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HEAL & SON'S Bedding Factory, 

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RALPH'S SERMON PAPER, 

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 adapted for expeditious writing with either the 

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ENVELOPE PAPER. — To 



identify the contents with the address and 

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 measuring 5i by 8 inches), for correspondence, 

 it saves time and is more economical. Price 

 9s. 6d. per ream. 



F. W. RALPH, Manufacturing Stationer, 

 36. Thiogmorton Street, Bank. 



PHOTOGRAPHIC Por- 

 traits and "VIEWS by the Collodion 

 and Waxed Paper Process. Apparatus, Ma- 

 terials, and Pure Chemical Preparation for the 

 above processi-s, Superior Iodized Collodion, 

 known by thenameof Collodio-iodide orXylo- 

 lodide of Silver, 9U. per oz. Pyro-gallic Acid, 

 4s. perdrachm. Acetic Acid, suited for Collodion 

 Picturps, 8rf. peroz. Crystallizable and per- 

 fectly pure, on which the success of the Calo- 

 typ'st so much depends. Is. per oz. Canson 

 Fr^re's Negative Paper, 3s.; Positive do., 4s. 6rf.; 

 La Croix. 3s. ; Turner, 3s. Whatman's Nega- 

 tive and Positive, 3s. per quire. Iodized Waxed 

 Paper, 10s. M. per quire. Sensitive Paijer 

 leady for the Camera, and warranted to keep 

 from fourteen to twenty days, with directions 

 for use, 11X9, 9s. perdoz. ; Iodized, only 6s. per 

 doz. 

 GEORGE KNIGHT & SONS (sole Agents 



for Voightlander & Sons' celebrated Lenses), 



Foster Lane, London. 



THE NEW PHOTOGRAPHIC 

 PROCESS.-CoUodio-Iodide, Is. peroz.— 

 Pure Pyro-gaMc Acid, 3s. per drachm—Acetic 



Acid for the glass processes, 8rf. per oz Acetic 



Acid (warranted to stand Nitrate of Silver), 

 Is. per oz — Iodide of Potassium, Is M. per oz. 

 Every other preparation and materiHl for Pho- 

 tography. .See 'Thornthwaite's (Juide to Pho- 

 tography, 5th Edition, just published. Is. each 

 Part ; free by post, 2s. 6d. 



HORNE, THORNTHWAITE, & WOOD, 

 Opticians, 123 and 121. Newgate Street, London. 



PHOTOGRAPHY. — CoUodion 

 (Iodized with the Ammonlo-Iodide of 

 Silver).— J. B. HOCKIN & CO., Chemists, 289. 

 Strand, were the first in England who pub- 

 lished the application of this agent (see Athe~ 

 nwttm, Aug. 14th). Their Collodion (price 

 9</. per oz.) retains its extraordinary senfitive- 

 ness, tenacity, and colour unimpaired for 

 months : it may be exported to any climate, 

 and the Iodizing Compound mixed as required. 

 J. B. HOCKIN & (5o. manufacture PURE 

 CHEMICALS and all APPARATUS with 

 the latest Improvements adapted for all the 

 Photographic and Daguerreotype processes. 

 Cameras for Developing in the open Country. 

 GLASS BATHS adapted to any Camera. 

 Lenses from the best Makers. Waxed and 

 Iodized Papers, &c. 



XYLO-IODIDE OF SILVER.— 

 IMPORTANT CAUTION. MR. R. 

 W. THOMAS cautions Photographers against 

 unprincipled persons who (from the fact of 

 Xyloidin and Collodion being synonymous 

 terms) would lead them to imagine that the 

 inferior compound sold by them at half the 

 price is identical with his preparation. This 

 shallow deception, of course, is soon detected ; 

 but in order to prevent such dishonourable 

 pracice, each bottle sent from his Establish- 

 ment is stamped with a red label, bearing his 



signature— to counterfeit which is felony 



Testimonials from the most eminent scientific 

 men of the day corroborate the statement, that 

 no available instantaneous photographic agent 

 has been discovered which produces Photo- 

 graphs, either negative or positive, of such per- 

 fect beauty and definition as the Xylo-Iodide 

 of Silver, prepared solely by RICHARD W. 

 THUMAS, Chemist, &c., 10. Pall Mall. 



N. B. Manufacturer of the purest Photo- 

 graphic Chemicals. 



PHOTOGRAPHY. — The 

 AMMONIO-IODIDE OF SILVER in 



Collodion (price 9d. per oz.), prepared by 

 DELATOUCHE & CO.. Photograpiiists and 

 Operative Chemists, 147. Oxford Street, has now 

 stood the test of Twelvemonth's use ; and for 

 taking Portraits, or Views on Glass, cannot 

 be surpassed in the beautiful results it pro- 

 duces. Specimens, either Negative or Positive, 

 can be seen on application. MES-RS. DE- 

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 most recent Improvements, PURE CHE- 

 MICALS, PREPARED SENSITIVE PA- 

 PKRS, and every Article connected with 

 Photography on Paper or Glass. Paintings, 

 Engravings, Etchings, and Works of Art co- 

 pied ill their Glass Room at Moderate Charges. 

 Instruction given in the Art. 



