orous dinosaurs run in
series with narrow tread, short or long steps, here and there a light
impression of tail or forefoot and occasionally the mark of the shank
and pelvis when the animal settled back and squatted down to rest a
moment. The modern crocodiles when they lift the body off the ground,
waddle forward with the short limbs wide apart, and even the lizards
which run on their hind legs have a rather wide tread. But these
dinosaurs ran like birds, setting one foot nearly in front of the
other, so that the prints of right and left feet are nearly in a
straight line. This was on account of their greater length of limb,
which made it easy for them to swing the foot directly underneath the
body at each step like mammals and birds, and thus maintain an even
balance, instead of wabbling from side to side as short legged animals
are compelled to do.

Of the animals that made these innumerable tracks the actual remains
found thus far in this country are exceedingly scanty. Two or three
incomplete skeletons of small kinds are in the Yale Museum, of which
_Anchisaurus_ is the best known.

_Megalosaurus._ Fragmentary remains of this huge carnivorous dinosaur
were found in England nearly a century ago, and the descriptions by
Dean Buckland and Sir Richard Owen and the restorations due to the
imaginative chisel of Waterhouse Hawkins, have made it familiar to
most English readers. Unfortunately it was, and still remains, very
imperfectly known. It was very closely related to the American
_Allosaurus_ and unquestionably similar in appearance and habits.[6]

ALLOSAURUS.

The following extract is from the American Museum Journal for January
1908.[7]

"Although smaller than its huge contemporary Brontosaurus, this animal
is of gigantic proportions being 34 feet 2 inches in length, and 8
feet 3 inches high."

[Illustration: Fig. 11.--MOUNTED SKELETON OF ALLOSAURUS IN THE
AMERICAN MUSEUM. _After Osborn_]

_History of the Allosaurus Skeleton._ "This rare and finely preserved
skeleton was collected by Mr. F.F. Hubbell in October 1879, in the
Como Bluffs near Medicine Bow, Wyoming, the richest locality in
America for dinosaur skeletons, and is a part of the great collection
of fossil reptiles, amphibians and fishes gathered together by the
late Professor E.D. Cope, and presented to the American Museum in 1899
by President Jesup.

"Shortly after the Centennial Exposition (1876) it had been planned
that Professor Cope