Geometrical optics / by Val H. Mackinney and Harry L. Taylor.
- Mackinney, Val H., 1791-1868.
- Date:
- 1908
Licence: In copyright
Credit: Geometrical optics / by Val H. Mackinney and Harry L. Taylor. Source: Wellcome Collection.
Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)
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![POLISHED MAHOGANY CASE, detachable lid, lined satin, brass fitting-i 8 Mo.io^ and g'ood lock, all lenses mounted in test rings with pierced handles. / 30 pairs spherical c/x -25 to 20 D. / 30 „ „ c/c -25 to 20 D. 18 single cylinders c/x '25 to 7 D. 1 18 „ „ c/c -25 to 7 D. 12 prisms 1* to 12* 12 piano blue and smoke glasses 1 each piano red, white, green and yellow glasses 4 discs (stenopaic slit, pin-hole, etc.) 1 single cell trial frame 1 two cell graduated trial frame Contents- 123 . d. 7 0 0 POLISHED MAHOGANY CASE, and ffood lock. detachable lid, lined satin, brass fittino-i 32 pairs spherical c/x -25 to 20 D. 32 „ „ c/c -25 to 20 D. 18 pairs cylinders c/x '25 to 7 D. 18 „ ■ „ c/c -25 to 7 D. ]2 prisms 1-^ to 12^ Contents^ 12 piano blue and smoke glasses 1 each piano red, green, amber, and white 4 discs (stenopaic slit, pin-hole, etc.) 1 chromatic test 1 single cell trial frame 1 two cell graduated trial fi-ame All lenses mounted in fine test rings, with pierced handles 8 0 POLISHED MAHOGANY CASE, highly finished with bevelled plate glass top, removable lid, tray for lenses to lift out, good fittings and lock. 50 pairs spherical c/x -25 to 20 D. 30 „ „ c/c -25 to 20 D. 18 single cylinders c/x -25 to 7 D. 18 „ ■ „ c/c -25 to 7 D. 12 prisms 1* to 12* 12 blue and smoke glasses 1 each piano rubj^, amber, green, and white 4 discs 1 single cell trial frame 1 double cell graduated trial frame All lenses in fine test rings, with pierced handles Contents- 0 0 POLISHED MAHOGANY CASE, highly finished, with bevelled plate glass top, removable lid, tray for lenses to lift out, good fittings and lock. f 32 pairs spherical c/x -25 to 20 D. 32 „ „ c/c-25 to 20 D. I 18 pairs cylinders c/x '25 to 7 D. \ 18 „ „ c/c -25 to 7 D. I ]2 prisms 1* to 12* Contents J 12 piano blue and smoke glasses 1 each piano red, amber, green, and white 5 discs 1 chromatic lest 1 Maddox rod 1 single cell trial frame 1 double cell graduated trial frame 9 16 0 LEATHER COVERED, finely finished case, with velvet and leather fittings, all lenses mounted in tempered spun rims, and nickel plated. / 32 pairs spherical c/x -12 to 20 D. ' 32 „ „ c/c-12 10 20 0. 20 pairs cylinders c/x -12 to 6 D. 20 „ ' „ c/c -12 to 6 D. 10 prisms 1a to 10* 3 coloured glasses 1 Maddox rod 6 stenopaic and occluding discs 1 double cell graduated trial frame \ 1 single cell trial frame Contents-/ or with best standard trial frame, adjustable sides 9 0 0 10 0 0](https://iiif.wellcomecollection.org/image/b2128717x_0131.jp2/full/800%2C/0/default.jpg)
