Jno. G. Hood. ESTABLISHED 1865. Wm. D. H. Wilson.
WILSON, HOOD & CO.,
No. 825 ARCH ST.,
PHILADELPHIA,
Deal in all varieties of
PHOTO. GOODS,
And solicit your orders, for any article you may need, including the following:
| S. & M., N. P. A., & C. S. Double Alb. Paper, per ream, | 35 cts. |
| S. & M., N. P. A., & C. S. Single Alb. Paper, per ream, | 25 cts. |
| Morgan's Double Alb. Paper, per ream, | 34 cts. |
| Morgan's Single Alb. Paper, per ream, | 30 cts. |
All other brands supplied.
Magee's Nitrate Silver, Magee's Chloride of Gold,
Best Hypo. of Soda, keg 112 lbs. $4 48,
American Optical Co. Printing Frames,
American Optical Co. Negative Boxes,
American Optical Co. Retouching Frames,
Negative Racks, Pans, Trays, etc.,
Waymouth's Vignette Papers, $1 00 per pack,
Onion Skin Paper, per dozen, 25 cts.
Singhi's Vig. Attachment, $1 50. Todd's Vig. Attachment, $1 50.
Hearn's Artistic Printing" $3 00. "Hearn's Practical Printer" $2 50.
COMPLETE PRICE-LISTS FREE.
SOLE AGENTS IN UNITED STATES
FOR THE ROSS AND STEINHEIL LENSES.
1878 EAGLE STOCK HOUSE. 1881
GEORGE MURPHY,
No. 9 West Fourth Street, N. Y.
Photo. & Ferro. Materials.
OUTFITS A SPECIALTY.
All Goods sold for Cash.
MANUFACTURER OF
Eagle Negative and Positive Collodions,
Eagle Negative and Ferro. Varnishes,
Eagle Retouching Fluid,
Eagle Ground Glass Varnish.
SOLE AGENT FOR
Hammenstede's Collodions and Varnishes,
Photo. Chemicals of best quality.
THE RETOUCHER'S OUTFIT:
Eagle New Metallic Pencil, hard,
Eagle New Metallic Pencil, soft,
Medium Siberian Lead,
Artists' Holder, to fit all,
The most complete set offered.
FOR THE PRINTER'S DEPARTMENT is offered
Eagle Photo-Printing Masks, English White Tissue Paper,
Thick Yellow Paper, Onion-Skin Paper,
Heavy Blotting Paper, Plain Papers,
Albumen Papers of all brands.
Am also Agent for BRENGEL'S SALTED PAPER.
Emulsion and Gelatine Dry Plate Materials,
Emulsion and Gelatine Dry Plates, best brands,
Backgrounds, Chairs, Accessories, etc.
Bargains in Card Stock. Bargains in Apparatus, Lenses, etc.
Domestic and Foreign CASH ORDERS Shipped Promptly.
Four Doors West of B'way. NEW YORK.
ESTABLISHED IN 1802.
FACTORIES: Waterbury, Conn., New Haven, Conn., New York City.
Scovill Manufacturing Co.,
MANUFACTURERS AND DEALERS IN
ALL ARTICLES USED IN PHOTOGRAPHY,
Warehouse, No's 419 & 421 Broome St.,
NEW YORK.
W. Irving Adams, Agent.
Irving and all brands of Albumen Papers,
Phenix Collodion, Phenix Varnish,
French and other Chemicals,
Scovill's New Solid Glass Baths, [warranted.]
Osborne's Picturesque Foregrounds,
American Optical Co's Celebrated Cameras,
Dry Plates and Dry Plate Apparatus,
Lenses,
Parlor Paste,
Etc., Etc., Etc., Etc.
PUBLISHERS
Photographic Times and American Photographer.
Subscription price, $2 00 per annum.
Among its contributors are the leading men in the profession.
[FOUNDED IN 1842.]
THE NEW ENGLAND
Photographic Stock House.
Largest variety in the UNITED STATES.
Every Article required by the Amateur, Photographer, Picture and Frame Dealer, Frame Maker and Crayon Artist.
—SPECIALTIES.—
Original Importers of Imitation Dallmeyer Tubes.
Sole Agents for William's Mitering Machines.
N. E. Agents for Bryant's Accessories.
Sole Agents for the celebrated "Berlin Paper."
Sole Agents for the celebrated "Gem Paper."
Sole Agents for Burrill's Portrait Bust Pedestal.
Sole Agent for Burrill's Neg. High Light Reducer.
Bryant's Quick Collodion, Celebrated for Years.
Dry Plate Outfits for Amateurs.
Every Variety Dry Plate Apparatus and Materials.
Anthony's and American Optical Co's Manufactures.
Dallmeyer, Morrison and Voigtlander Tubes on Sale.
C. H. CODMAN & CO.,
[Formerly Geo. S. Bryant & Co.,]
34 Bromfield St., BOSTON.
ANTHONY'S
DRY PLATE OUTFITS
Most Complete Assortment in Market.
LIGHT, PORTABLE AND INEXPENSIVE.
FIRM, SUBSTANTIAL AND PRACTICAL.
The Lenses supplied with these are superior to those furnished by Any other House. Send for Descriptive Circular.
Anthony's Patent Perfect Dry Plate-holder
BEST IN THE WORLD!
E. & H. T. ANTHONY & CO. 591 B'way, NEW YORK.
FOOTNOTES
-
Footnote [1]
Such things as test-tubes should be found in every photographer's work room; they cost little, and are always useful for working solutions. The sizes recommended are 3/8-inch, 1/2-inch, and 1-inch diameter. A dozen of each will not be out of the way.
-
Footnote [2]
Sodium Chloride and Silver Nitrate form Silver Chloride and Sodium Nitrate. NaCl + AgNO3 = AgCl + NaNO3 -
Footnote [3]
Chlorine and Potassium Nitrite and Water give Hydrochloric Acid and Potassium Nitrate 2Cl + KNO2 + H2O = 2HCl + KNO3 and
Chlorine, Silver Nitrate, and Water give Silver Chloride, Hydrochlorous Acid and Nitric Acid. 2Cl AgNO3 + H2O = AgCl HClO + HNO3 -
Footnote [4]
With the former we have this action—
Silver Chloride gives Silver Sub-chloride and Liberated Chloride. Ag2Cl2 = Ag2Cl + Cl With the latter the silver in combination with the organic matter, which is in a state of oxide, is probably reduced to the state of sub-oxide.
-
Footnote [5]
Sulphuretted hydrogen may be prepared by pouring dilute sulphuric acid on ferric sulphide. The chloride or the silver compound, when damped, may be held over it, taking care that no liquid is spirted up on to it.
-
Footnote [6]
Those who prepare collodio-albumen plates will find the upward filtration arrangement of immense value, as bubbles are unknown by it.
-
Footnote [7]
If bubbles are seen, they must be broken, and the sheet floated again for another minute.
-
Footnote [8]
The drainings are added to the next batch of albumen which is prepared.
-
Footnote [9]
"Instruction in Photography," 4th edition, page 121.
-
Footnote [10]
Chlorine and Water give Hydrochloric acid and Oxygen. Cl + H2O = HCl + O -
Footnote [11]
Nitric Acid and Silver Carbonate give Silver Nitrate and Carbonic Acid and Water. 2HNO3 + Ag2CO3 = 2AgNO3 + CO2 + H2O -
Footnote [12]
Silver Nitrate and Aluminium Sulphate (Alum) give Silver Sulphate and Aluminium Nitrate. 6AgNO3 + Al2(SO4)3 = 3(Ag2SO4) + 2Al(NO2)3 -
Footnote [13]
Silver Nitrate and Hydrochloric Acid give Silver Chloride and Nitric Acid. AgNO3 + HCl = AgCl + HNO3 -
Footnote [14]
Suppose it is salted with ammonium chloride, we have—
Ammonium Chloride and Silver Nitrate give Ammonium Nitrate and Silver Chloride. NH4Cl + AgNO3 = NH4NO3 + AgCl -
Footnote [15]
Several other methods are given in "Instruction in Photography," in the Appendix.
-
Footnote [16]
One part of nitric acid to 4 parts of water.
-
Footnote [17]
The shutter may be made of American leather, covered over with one quarter-inch strips of oak or well-seasoned pine. The shutter should fit into a groove formed along the sides and bottom of the front of the cupboard.
-
Footnote [18]
In fig. 18 the fastening for only one of the pressure-bars is given, to avoid complication.
-
Footnote [19]
See "Instruction in Photography" (page 67), fourth edition.
-
Footnote [20]
For this reason, amongst others, it is desirable that photographers should use glass for their negatives which is at least tolerably flat.
-
Footnote [21]
See "Pictorial Effect in Photography" (Piper and Carter).
-
Footnote [22]
Hydrofluoric acid is always supplied by chemists in gutta-percha bottles, as it attacks glass. A spare gutta-percha bottle can easily be procured.
-
Footnote [23]
This calculation is near enough for our purpose. There are certain niceties which might be introduced, such as the "critical angle of the glass."
-
Footnote [24]
The boxes in which children's puzzles are often packed will give an idea of what is meant.
-
Footnote [25]
Silver subchloride and gold trichloride give silver chloride and gold. 3Ag2Cl + AuCl3 = 6AgCl + Au -
Footnote [26]
"Instruction in Photography," 4th edition.
-
Footnote [27]
"Instruction in Photography," 4th edition.
-
Footnote [28]
Or ten minims of ammonium lactate.
-
Footnote [29]
See Mr. W. Brooks' article in Photographic Almanac, 1881.
-
Footnote [30]
The crucible should be of Stourbridge clay.
Transcriber's Note:
Hyphenation, variations in spelling and inconsistent numbering of, and references to, figures have been retained as in the original publication.
Apart from spaces within compounds (which have been removed), formulae have been retained as originally published, excepted where noted below.
Changes have been made as follows:
Page 3
Nitric Acid changed to
Potassium Nitrate
Page 6
If the operator carefully collect the white changed to
If the operator carefully collects the white
Page 14
theoretical limit to amount changed to
theoretical limit to the amount
Page 19
2AGNO3 changed to
2AgNO3
Nitratem changed to
Nitrate.
Page 22
AgNo3 changed to
AgNO3
Page 23
Ammonium Nitrate Silver Chloride changed to
Ammonium Nitrate and Silver Chloride
NH4,NO3 changed to
NH4NO3
AgNo3 changed to
AgNO3
Page 40
8 inches. changed to
18 inches.
Page 41
printer could not hope to do it successfully. changed to
printer could not hope to do it successfully."
Page 46
the ordinary consistency, than changed to
the ordinary consistency, then
Page 49
enable the operator to guage changed to
enable the operator to gauge
Page 53
centreing his imagination in changed to
centring his imagination in
Page 64
light on B would be only four twenty-fifths changed to
light on B would be only four-twenty-fifths
Page 65
and cut out an aperature corresponding changed to
and cut out an aperture corresponding
Page 66
at a proper heigth from changed to
at a proper height from
Page 69
Having discribed in the last changed to
Having described in the last
Page 70
as it sometimes called changed to
as it is sometimes called
Page 71
and the effect be improved.. changed to
and the effect be improved.
Page 83
If he find that he is not changed to
If he finds that he is not
Page 87
so dilute the reduction takes places very slowly changed to
so dilute the reduction takes place very slowly
Page 88
common desinfecting powder changed to
common disinfecting powder
it as as well to have two changed to
it is as well to have two
Page 90
a littler acetic acid or common salt changed to
a little acetic acid or common salt
Page 91
must be rememberd we are changed to
must be remembered we are
Page 92
when the sodium hypsulphite is changed to
when the sodium hyposulphite is
Page 95
and, with a squegee changed to
and, with a squeegee
Page 101
floated on— changed to
floated on:—
Last page of advertisements
BEST IN THE WORD! changed to
BEST IN THE WORLD!