862 president's address. 



hood of the entrance to the cave but at a much lower level. At 

 the Pulpit bend there is a considerable barrier of rock, which 

 causes the watercourse to deviate abruptly, and it is between 

 this barrier and the preceding rectangular bend that the great 

 mass of bones have been recently obtained. It would thus appear 

 as if the bones had been indiscriminately drawn in by a whirl- 

 pool, as Professor Denton suggests, and then on meeting with 

 this obstruction settled down and were retained there. Between 

 the two points just mentioned, no less than nine shafts and 

 trenches were sunk in the floor of the cave, in some of which 

 scarcely any relics were obtained : in others, adjoining the 

 barrier, considerable quantities were found. Amongst these the 

 most interesting were several perfect lower jaws of the Thylacoleo, 

 incisor and molar teeth and a rib of the Biprotodon, teeth of a 

 gigantic kangaroo, the largest pelvis of a kangaroo yet discovered, 

 portions of the jaws and teeth of Thylacinus and Basyurus, the 

 shoulder-blade and claw bones of a monstrous Echidna, and a 

 vast number of the bones of wombats, birds, rats, mice, &c. 



One of the most valuable of the remains amongst these dis- 

 coveries is that of a very large radius and ulna, quite as large as 

 that of an ordinary tiger, and very similar in form. These bones 

 were found in the same trench with the lower jaws of the 

 Thylacoleo, and it is more than probable that they will turn out 

 to belong to that animal. The radius is 1 inches long, much en- 

 larged at its carpal end, which is one inch and three-quarters, and 

 shows a well-marked articular surface for the reception of the 

 carpal bones. It shows a second articular surface on the inner 

 side of the enlarged end articulating with the ulna. Above, it 

 has a distinct cylindrical head, depressed on its upper surface 

 into a shallow cup ; and round the circumference of the head is a 

 smooth articular surface, showing that it rotated freely on the 

 ulna, and hence the possessor had free power of pronation and 

 supination. Tho ulna measures 1 1 £ inches long, and 2\ from tho 

 inferior margin to the top of the coronoid process. The position 



