Page:Popular Science Monthly Volume 59.djvu/25

Rh evolved from a primitive form upon the same theater of zoogenic energy. The most striking objects in the paleontological section, from a popular standpoint, are the huge dinosaurs from the Jurassic beds of Wyoming and Colorado. The most perfect specimen of Diplodocus longus Marsh known to exist anywhere was secured in the summer of 1899. This huge, lizard-like quadruped was about seventy feet in length from the tip of the nose to the end of the tail, and stood fully fifteen feet in height at the hips. Six skeletons of Brontosaurus, a still huger monster,

have also been discovered and collected. In no instance were these skeletons complete, but enough material has been secured, it is believed, to admit of the restoration of a composite skeleton of Brontosaurus as well as that of Diplodocus. Within the limits of a brief sketch it is impossible to speak at length of the collections brought together in the section of paleontology, but it is worthy of note that the Museum contains the largest specimen of the Mastodon known to exist, and with the single exception of the 'Warren Mastodon,' which