Notices to Correspondents.
Owing to a necessity for going to press this week at an unusually early period, that the present Number might be included in the Monthly Part, we are compelled to omit replies to many Correspondents.
L. A. M. (Great Yarmouth) will find several Notes respecting the means of discovering the bodies of the drowned in our 4th Vol., pp. 148. 251. 297.
H. O. N. (Brighton). In our own practice we have never obtained pictures with the agreeable colour which is produced by the iodide of silver, when iodide of ammonium has been used. The flaking of the collodion would indicate an excess of iodide, and is often cured by the addition of about twenty drops of alcohol to an ounce of collodion. The feathery appearance is difficult to comprehend, without seeing a specimen. If you are using glass which has been previously used, the most minute remains of iron would cause a discoloration. Muriatic acid is the most effectual remedy for cleaning glass so used. It may be procured at 2½d. per lb., and should be diluted with three parts of water.
An Amateur (Oxford). We are not of opinion that Mr. Talbot could restrain any one from taking collodion portraits, as patentee of the Talbotype process. It is done in many parts of London daily without any permission.—See Times' Advertisements, &c.
C. E. F. We think you use too strong a solution of the ammonio-nitrate of silver: thirty grains to the ounce of water, and then redissolved with the strong liq. ammon., give to us most satisfactory result,—the paper being prepared before with chloride of barium, chloride of sodium, and chloride of ammonia, of each half a drachm to the quart of water, in which half an ounce of mannite, or sugar of milk, has been previously dissolved. When sufficiently printed, put it into the hypo. sulph. solution, without previous immersion.
H. L. L. We shall be happy to render you the best assistance we can, if you will communicate with us again. For iodized paper we may safely refer you to our advertising columns.
A few complete sets of "Notes and Queries," Vols. i. to vi., price Three Guineas, may now be had; for which early application is desirable.
"Notes and Queries" is published at noon on Friday, so that the Country Booksellers may receive Copies in that night's parcels, and deliver them to their Subscribers on the Saturday.
NEW ACHROMATIC MICROSCOPES on MR. PRITCHARD'S construction, Micrometers, Polarizing Apparatus, Object glasses, and Eye-pieces. S. STRAKER supplies any of the above of the first quality, and will forward by post free a new priced List of Microscopes and Apparatus.
162. FLEET STREET, LONDON.
PURE NERVOUS or MIND COMPLAINTS.—if the readers of Notes and Queries, who suffer from depression of spirits, confusion, headache, blushing, groundless fears, unfitness for business or society, blood to the head, failure of memory, delusions, suicidal thoughts, fear of insanity, &c., will call on, or correspond with, REV. DR. WILLIS MOSELEY, who, out of above 22,000 applicants, knows not fifty uncured who have followed his advice, he will instruct them how to get well, without a fee, and will render the same service to the friends of the insane.—At home from 11 to 3.
18. BLOOMSBURY STREET, BEDFORD SQUARE.
SPECTACLES.—WM. ACKLAND applies his medical knowledge as a Licentiate of the Apothecaries' Company, London, his theory as a Mathematician, and his practice as a Working Optician, aided by Smee's Optometer, in the selection of Spectacles suitable to every derangement of vision, so as to preserve the sight to extreme old age.
ACHROMATIC TELESCOPES, with the New Vetzlar Eye-pieces, as exhibited at the Academy of Sciences in Paris. The Lenses of these Eye-pieces are so constructed that the rays of light fall nearly perpendicular to the surface of the various lenses, by which the aberration is completely removed; and a telescope so fitted give one-third more magnifying power and light than could be obtained by the old Eye-pieces. Prices of the various sizes on application to
WM. ACKLAND, Optician, 93. Hatton Garden, London.
STEEL PENS.—PARTRIDGE & COZEN'S STEEL PENS are the best; made of the purest steel, all selected and warranted. Fine or medium points, 1s. 3d. per box of twelve dozen; broad ditto, 1s. 6d.; extra broad, 1s. 6d., a very easy pen—will write with comfort on brown paper; correspondence pen, 1s. 3d. per box—this pen adapts itself to any hand. P. & C. are the original makers, and although there are many imitations, it is still unequalled. Best magnum bonums, 3s. 6d. per gross; silver pens, 1s., and gold ditto, 2s. each, warranted; patent holders, fit any pen, 6d. dozen, or 5s. gross. A liberal allowance to shippers and the trade. Samples per post, on receipt of six stamps.
PARTRIDGE & COZEN'S Cheap Stationery Warehouses, 127. and 128. Chancery Lane.
JUST PUBLISHED.—A CATALOGUE OF CURIOUS BOOKS, by J. CROZIER, 5. New Turnstile, near Lincoln's Inn Fields, Holborn. Catalogues sent on receipt of One Postage Stamp.
PREPARING FOR IMMEDIATE PUBLICATION.
PHOTOGRAPHIC NOTES:
Comprising Plain Directions for the Practice of Photography, including the Collodion Process on Glass; the Paper and Wax-Paper Processes; Printing from Glass and Paper Negatives, &c.
By DR. DIAMOND, F.S.A.
With Notes on the Application of Photography to Archæology, &c.,
By WILLIAM J. THOMS, F.S.A.
London: GEORGE BELL, 186, Fleet Street.
PHOTOGRAPHIC SCHOOL.—ROYAL POLYTECHNIC INSTITUTION.
The spacious Plate Glass House, 30 feet by 15, with the Class Rooms and Ladies' Apartment, being nearly completed. Classes or Private Lessons, embracing all branches of Photography, will commence May 2nd, 1853, for Gentlemen, and May 3rd, for Ladies.
A perfect Apparatus with Ross's finest Lenses has been procured, and every new improvement will be added.
The School will be under the joint direction of T. A. MALONE, Esq., who has been long connected with Photography, and J. H. PEPPER, Esq., the Chemist to the Institution.
A Prospectus, with terms, may be had at the Institution.
Just published, price 1s., free by Post 1s. 4d.,
THE WAXED-PAPER PHOTOGRAPHIC PROCESS of GUSTAVE LE GRAY'S NEW EDITION. Translated from the French.
Sole Agents in the United Kingdom for VOIGHTLANDER & SON'S celebrated Lenses for Portraits and Views.
General Depôt for Turner's, Whatman's, Canson Frères', La Croix, and other Talbotype Papers.
Pure Photographic Chemicals.
Instructions and Specimens in every Branch of the Art.
GEORGE KNIGHT & SONS, Foster Lane, London.
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 delicacy of detail rival the choicest Daguerreotypes, specimens of which may be seen at their Establishment.
Also every description of Apparatus, Chemicals, &c. &c. used in this beautiful Art.—123. and 121. Newgate Street.
PHOTOGRAPHIC PAPER.—Negative and Positive Papers of Whatman's, Turner's, Sanford's, and Canson Frères' make. Waxed-Paper for Le Gray's Process. Iodized and Sensitive Paper for every kind of Photography.
Sold by JOHN SANFORD, Photographic Stationer, Aldine Chambers, 13. Paternoster Row, London.
PHOTOGRAPHY.—Collodion (Iodized with the Ammonio-Iodide of Silver)—J. B. HOCKIN & CO., Chemists, 289. Strand, were the first in England who published the application of this agent (see Athenæum, Aug. 14th). Their Collodion (price 9d. per oz.) retains its extraordinary sensitiveness, tenacity, and colour unimpaired for months: it may be exported to any climate, and the Iodizing Compound mixed as required. J. B. HOCKIN & CO. 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.