The below images have been adapted (inverted) from the black on white images of Dr. Eduard d’Alton found in Die vergleichende Osteologie.
Hyena Skeleton by Eduard Joseph D’Alton circa 1822 Adapted from Die vergleichende Osteologie
Kangaroo Skeleton by Eduard Joseph D’Alton circa 1824 Adapted from Die vergleichende Osteologie
Lion Skeleton by Eduard Joseph D’Alton circa 1822 Adapted from Die vergleichende Osteologie
Long-tailed Monkey Skeleton by Eduard Joseph D’Alton circa 1823 Adapted from Die vergleichende Osteologie
Ox Skeleton by Eduard Joseph D’Alton circa 1823 Adapted from Die vergleichende Osteologie
Pig Skeleton by Eduard Joseph D’Alton circa 1821 Adapted from Die vergleichende Osteologie
Polar Bear Skeleton by Eduard Joseph D’Alton circa 1822 Adapted from Die vergleichende Osteologie