Annals of medical history . Fig. 7. The skeleton or an early Tertiary mammal, Titanotherium robustum,from the White River 01 igocene of South Dakota, as it is mounted in the AmericanMuseum of Natural History. The fifth rib on the right side lias been Fracturedand has healed with a pseudarthrosis and considerable callus. The details areshown in the enlarged sketch in the lower right hand corner. One-sixteenthnatural size. (Courtesy of Dr. W. K. Gregory.) to certain persistent types of animals whichhad existed almost unchanged from earlygeological periods down to the the known dise

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Annals of medical history . Fig. 7. The skeleton or an early Tertiary mammal, Titanotherium robustum,from the White River 01 igocene of South Dakota, as it is mounted in the AmericanMuseum of Natural History. The fifth rib on the right side lias been Fracturedand has healed with a pseudarthrosis and considerable callus. The details areshown in the enlarged sketch in the lower right hand corner. One-sixteenthnatural size. (Courtesy of Dr. W. K. Gregory.) to certain persistent types of animals whichhad existed almost unchanged from earlygeological periods down to the the known diseases (Figs. 9-12) of became extinct, but some of them haveretained the same characteristics, as seenin the resulting changes of to present evidences, disease.

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Keywords: ., bookauthorp, bookcentury1900, bookdecade1910, booksubjectmedicine