This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1889 Excerpt: ...close as possible to the flame without danger of cracking them. The negative should be placed upside-down, and film side outwards, as close as possible to the condensers, the magnifying lens, which is usually rovided with a rackw'Tk movement to ensure easy and accurate focus, being placed at the focus of condensers. ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1889 Excerpt: ...close as possible to the flame without danger of cracking them. The negative should be placed upside-down, and film side outwards, as close as possible to the condensers, the magnifying lens, which is usually rovided with a rackw'Tk movement to ensure easy and accurate focus, being placed at the focus of condensers. Magic Pictures. A process discovered by Sir John Herschel, which is more of an ingenious toy than of any practical ust. The process is as follows: --Print as usual on albumenised paper, fix without toning and wash thoroughly, immerse the prints in a saturated solution of perchloride of mercury until the image is thoroughly bleached and disappears, wash and dry. To make these invisible images appear at the word of command, as if by magic, place over them a wetted sheet of blotting paper, which has been previously soaked in a saturated solution of hyposulphite of soda, and pass the hand over them, when the image will start up with more than its original vigour. Maglip, or Meglip. An artist's material, made by mixing boiled linseed oil with mastic varnish. It is used for thinning oil colours and for glazing on delicate tints on finished oil paintings. Magnesium. Mg = 24. Occurs in large quantities as dolomite or mountain limestone--an impure carbonate. The metal is silve1y white in colour, and is met with commercially in the form of wire, ribbon, and powder. It is now of common use for producing negatives by night (see Art1f1c1al L1ght), as the metal burns at a comparatively low temperature, giving an extremely actinic and brilliant light. Magnesium Sulphate. MgSoH./) = 246. Synonym: Epsom Salts. Occurs naturally in certain springs, but is usually made by dissolving dolomite in dilute sulphuric acid, and subsequent purification and crystallisation. ..
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
