Smyth, C. Piazzi – MADEIRA SPECTROSCOPIC. Being a revision of 21 places in the red half of the solar visible spectrum. With a Rutherford diffractions grating at Madeira (Lat. = 32 38' N., Long. = I h 8 W.) DURING THE SUMMER OF 1881, Edinburgh, W. & A. K. Johnston, 1882.
