Transparencies (7) of the Southern skies, taken in 1902-4 by the late John Franklin Adams Esq., at the Royal Observatory, Cape of Good Hope, the telescope employed was a refractor 10" aperture focal length 45", region around nebula involving Eta Argus Transparencies (7) of the Southern skies
Glass positive:- Franklin-Adams astro-camera, this shows the instrument with which the photographs were obtained for the Franklin-Adams chart, the lens was a Cooke Triplet of 10-in, aperture, and 45-in, focal length, a few of the 206 photographs obtained are also exhibited, each plate was 15 inches square, and the complete series affords a photographic representation of the whole sky, 15" x 15" Glass positive:- Franklin-Adams astro-camera