65 



as the Ingleborougli and Peak caverns. He did not believe that 

 the " tahis" had been made up of debris which had entirely 

 fallen from the face of the cliffs, and which would have thus 

 been altogether of limestone "breccia"; but on the contrary 

 that a great part of it had been washed out from the interior 

 of the cave in times of flood, carrying with the earth any 

 loose bones or other light objects which lay in the cave. 

 The proximity of the Craven fault might account for the 

 presence of Silurian rocks in the debris, without the neces- 

 sity of supposing glacial action for their conveyance. He 

 did not consider it possible for the cavern to have been 

 filled with debris washed in through its entrance, but rather 

 the reverse. 



