468 



ANNUAL REPORT SMITHSONIAN INSTITUTION, 1940 



Nor can the placing of the lintels be taken lightly, apart from 

 the meticulous care expended on fitting them together. Many sug- 

 gestions have been made, such as levers and alternate packing baulks 

 of timber, or inclines of chalk up which the stone could be rolled. 





FlGUKE 8. 



There seems, however, as yet to be little certainty on this subject 

 and very little proof of the methods employed. This is one of the 

 points which will doubtless be solved in time, and it is best, for the 

 moment, not to add to the many speculations already current on the 



