MORRIS] CONCLUSIONS 205 
the caverns may have been directly descended from the builders of 
the jacal houses, or there may have been a hiatus between the two 
periods of occupancy. 
Necessarily these conclusions are but tentative, and are offered as 
nothing more. Now that a beginning has been made, it is to be hoped 
that some one will see fit to undertake a work of sufficient amplitude 
to lead as nearly as possible to the solution of the problems which 
the brief research here recorded has done little more than to suggest. 
