The book of lantern ; being a practical guide to the working of the optical (1888)

Record Details:

Title:
The book of lantern ; being a practical guide to the working of the optical
Date:
1888
Publisher:
London : Wyman & Sons
Volume:
The book of lantern ; being a practical guide to the working of the optical (or magic) lantern ; with full and precise directions for making and colouring lantern pictures
Leaf #:
000133
Language:
English
Collection:
Books
Format:
Books
Contributor:
University of California Libraries
Sponsor:
MSN
Coordinator:
Media History Digital Library
Date Added:
July 19, 2022
Something wrong or inaccurate about this page? Let us Know!

Thanks for helping us continually improve the quality of the Lantern search engine for all of our users! We have millions of scanned pages, so user reports are incredibly helpful for us to identify places where we can improve and update the metadata.

Please describe the issue below, and click "Submit" to send your comments to our team! If you'd prefer, you can also send us an email to mhdl@commarts.wisc.edu with your comments.




We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.

Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.

120 THE BOOK OF THE LANTERN. cent, solution of sodic citrate, poured on and off, and gently rubbed upon the gelatine surface with a plug of cotton wool. This treatment is not necessary if rainwater is available. Messrs. Mawson and Swan supply an admirable plate for lantern-slide work. It can be used for reducing in the camera, or for contact printing, and is amenable to more than one method of development. At one of the exhibitions this firm showed a specimen frame of four transparencies from one negative,—each developed by a different formula, and showing a difference of tint for each. I was so pleased with their appearance that I asked for particulars, and the firm kindly supplied me with the four formulae in question. Here they are :— A.—Meta Bisulphite Developer. B.—Carbonate Soda „ C.—Ammon. Sulphite „ D.—Ferrous Oxalate „ A. I. Pyrogallic Acid ... ... ... ... 40 grs. Meta-bisnlphite Potass 120 „ Bromide Ammonium ... ... ... ... 40 ,, Distilled Water 20 ozs. II. Liquor Ammonia ... .. t ... ... 2£ drms. Distilled Water 20 ozs. Mix equal parts of A and B just before using. B. Equal parts.