460 NOTES ON THE ABERCROMBIE CAVES, 



Dr. Bancroft. — Diseases of Animals and Plants, Brisbane, 1870. 

 From Melbourne University. — Calendar for 1879-80. 

 From Mr. C. Pickering. — Chronological History of Plants, by 

 C. Pickering, M.D. 



Report of the Salmon Commission, Tasmania. 



From Professor Liversidge. — International Congress of 

 Geologists at Paris, 1878. 



From Professor Owen. — On the Extinct Animals of the 

 Colonies of Great Britain. 



papers read. 

 Notes on the Abercrombie Caves. 



By C. S. Wilkinson, L.S., F.G.S., Government Geologist. 



I desire to lay before you a brief description of the Abercrombie 

 Caves, and of the geological features of the country in their 

 vicinity. 



These caves are situated on the Grove Creek, about 40 miles 

 in a southerly direction from Bathurst, and 8 miles from the 

 gold mining township of Arthur or Trunkey. 



The Grove Creek takes its rise in the Dividing Range which 

 forms the watershed between the Maequarie River and the 

 Abercrombie River, and flows almost due south for a distance of 

 18 miles to Thompson's Creek, which in about two miles further 

 joins the Abercrombie River. Its valley gradually deepens until 

 it reaches that of Thompson's Creek, where it is about 100 feet 

 deep. The Caves occur two and a-half miles from Thompson's 

 Creek, at a point where a mass of marble limestone, about 200 

 yards wide, stretches like a huge dam across the valley. Through 

 this barrier of limestone the Grove Creek has by the solvent 

 action of its water, aided by the sand and gravel swept along 

 during floods, eroded a large passage or archway, similar to the 



