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. F. Osborn has been working on this site for six 

 years (from 1898), and has taken therefrom bones weighing 

 nearly 100,000 Ibs. (over 44 tons). 1 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 Corno 

 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 



1 The Century Magazine, September, 1904. The Fossil Wonders of the 

 West, by Professor H. F. Osborn. 



