Left: Glass plate photograph taken in Arequipa in 1925. (Courtesy of Harvard). Right: Cover of Annie Jump Cannon’s notebook featuring ‘Observations in Arequipa.’ (Courtesy of Harvard (Image ID: phaedra2228))
Left: Glass plate photograph taken in Arequipa in 1925. (Courtesy of Harvard). Right: Cover of Annie Jump Cannon’s notebook featuring ‘Observations in Arequipa.’ (Courtesy of Harvard (Image ID: phaedra2228))