152 
EXTINCT MONSTERS 
famous as a happy hunting ground for geologists in search of 
prehistoric monsters. It was here that Marsh and others found 
the bones of creatures whose existence had never been suspected, 
some of which we have already described. But it was in the 
year 1897 that Mr. Walter Granger, of the American Museum 
Expedition, discovered the greatest and most wonderful site for 
fossil bones ever known in the whole history of Science. It 
simply teems with bones, Dinosaurs, crocodiles, turtles, etc. ! 
Professor H. E. Osborn has been working on this site for six 
years (from 1898), and has taken therefrom bones weighing 
nearly 100,000 lbs. (over 44 tons).^ Judging from the number 
of thigh bones, these probably represent 73 animals of the 
following kinds : Giant herbivorous Dinosaurs, 44 ; plated herbi- 
vorous ditto, 3 ; large carnivorous ditto, 6 ; small carnivorous 
ditto, 3 ; crocodiles, 4 ; turtles, 5. 
But the site is not yet exhausted ; it lies not far from Medicine 
Bow Eiver, and is marked by a ruined hut which some shepherd 
had built up with blocks of stone containing petrified bones. 
The illustration on Plate XX. shows a hind limb of a Diplodocus 
nearly six feet long ! from a photograph kindly lent by Professor 
Osborn. The site is now known as Bone-cabin Quarry ” — a 
building probably unique in the world’s history. At the Como 
Bluffs (Cliffs), about ten miles off, single animals lie from twenty 
to one hundred feet apart ; but whole skeletons are seldom found. 
The late Professor Marsh, however, got a nearly complete Bronto- 
saurus here, which is now in the Yale Museum. A geologist 
is more likely to find a complete tail, or a long neck, or a good 
part of the trunk. Skulls are rare, unfortunately. Professor 
Osborn suggests that we have here the site of an old river-bar 
^ The Century Magazine, September, 1904. The Fossil Wonders of the 
West, by Professor H. F. Osborn. 
