462 



ANNUAL REPORT SMITHSONIAN INSTITUTION, 1940 



One stone 30 feet in length and weighing about 50 tons was forthcom- 

 ing, but the companion stone was only 25 feet long. In order, there- 

 fore, that the crowns of these two uprights should be level, the longer 

 stone had to be embedded 9 feet in the ground, while the shorter one 

 had only a depth of 5 feet. To give it rather more solidity, a boss of 



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FlQUUB G. 



untrimmed stone was left at the base. In the same way the depth 

 of the foundation of all the Sarsen uprights in Stonehenge has been 

 adjusted to meet the length of each stone. The lintel stones of these 

 large Trilithons are of an average length of 16 feet; they are wider 

 on the upper surface than below, and their inner face follows the curve 



