Smithsonian Report, 1919.—Dyson and Others. 
PLATE |. 
A HALE-TONE REPRODUCTION OF ONE OF THE NEGATIVES TAKEN WITH THE 4-INCH LENS AT SOBRAL. 
‘This shows the position of the stars and, as far as possible in a reproduction of this kind, the cl:sracter of the images, as there has been no retouching. 
