The below images have been adapted (inverted) from the black on white images of Dr. Eduard d’Alton found in Die vergleichende Osteologie.
![Bat Skeleton by Eduard Joseph D'Alton circa 1824](https://ctgpublishing.com/wp-content/uploads/2013/09/bat-skeleton-by-eduard-joseph-d-alton-circa-1824-invert-1024x524.jpg)
Bat Skeleton by Eduard Joseph D’Alton circa 1824 Adapted from Die vergleichende Osteologie
![Beaver Skeleton by Eduard Joseph D'Alton circa 1823](https://ctgpublishing.com/wp-content/uploads/2013/09/beaver-skeleton-by-eduard-joseph-d-alton-circa-1823-invert-1024x718.jpg)
Beaver Skeleton by Eduard Joseph D’Alton circa 1823 Adapted from Die vergleichende Osteologie
![Camel Skeleton by Eduard Joseph D'Alton circa 1823](https://ctgpublishing.com/wp-content/uploads/2013/09/camel-skeleton-by-eduard-joseph-d-alton-circa-1823-invert-1024x709.jpg)
Camel Skeleton by Eduard Joseph D’Alton circa 1823 Adapted from Die vergleichende Osteologie
![Civet Skeleton by Eduard Joseph D'Alton circa 1822](https://ctgpublishing.com/wp-content/uploads/2013/09/civet-skeleton-by-eduard-joseph-d-alton-circa-1822-invert-1024x724.jpg)
Civet Skeleton by Eduard Joseph D’Alton circa 1822 Adapted from Die vergleichende Osteologie
![Elephant Skeleton by Eduard Joseph D'Alton circa 1821](https://ctgpublishing.com/wp-content/uploads/2013/09/elephant-skeleton-by-eduard-joseph-d-alton-circa-1821-invert-1024x769.jpg)
Elephant Skeleton by Eduard Joseph D’Alton circa 1821 Adapted from Die vergleichende Osteologie
![Giraffe Skeleton by Eduard Joseph D'Alton circa 1823](https://ctgpublishing.com/wp-content/uploads/2013/09/giraffe-skeleton-by-eduard-joseph-d-alton-circa-1823-invert-784x1024.jpg)
Giraffe Skeleton by Eduard Joseph D’Alton circa 1823 Adapted from Die vergleichende Osteologie
![Harbor Seal Skeleton by Eduard Joseph D'Alton circa 1823](https://ctgpublishing.com/wp-content/uploads/2013/09/harbor-seal-skeleton-by-eduard-joseph-d-alton-circa-1823-invert-1024x771.jpg)
Harbor Seal Skeleton by Eduard Joseph D’Alton circa 1823 Adapted from Die vergleichende Osteologie
![Hare Skeleton by Eduard Joseph D'Alton circa 1823](https://ctgpublishing.com/wp-content/uploads/2013/09/hare-skeleton-by-eduard-joseph-d-alton-circa-1823-invert-1024x719.jpg)
Hare Skeleton by Eduard Joseph D’Alton circa 1823 Adapted from Die vergleichende Osteologie
![Hippototamus Skeleton by Eduard Joseph D'Alton circa 1823](https://ctgpublishing.com/wp-content/uploads/2013/09/hippototamus-skeleton-by-eduard-joseph-d-alton-circa-1821-invert-1024x723.jpg)
Hippototamus Skeleton by Eduard Joseph D’Alton circa 1823 Adapted from Die vergleichende Osteologie