Keywords: PSM V53 D463 Deer mouse.png Deer mouse http //www archive org/details/popularsciencemo53newy Popular Science Monthly Volume 53 1898 author PD-old Extracted image from book to grayscale cropped whitespace ineuw http //www archive org/details/popularsciencemo53newy Popular Science Monthly Volume 53 Popular Science Monthly illustrations/Volume 53 Peromyscus maniculatus |