112 SOME NOTES ON ARBOR LOW AND OTHER LOWS. 



on Eyam Moor, (e) The Bow Stones, about two miles, as the 

 crow flies, west of Whaley Bridge. (/) Two tumuli, about half 

 a mile north-east of Little Hucklow. Doubtless there are many 

 more. 



Note 6. — Referring to Note 2, the equilateral triangle has 

 the curious property of accurately dividing the horizon into 

 twelve equal parts, corresponding with the ancient divisions 

 of the Zodiac. 



Thus — 



B C being East and West. 



B A produced gives 30° East of North. 



CA „ ,, 30° West of North. 



B C ,, „ 90° East of North. 



AB ,, „ 150° West of North. 



AC ,, ,,150° East of North. 



CB „ ,, 90° West of North. 



And D being the bi-section of B A ; E the bi-section of B C ; 

 F the bi-section of A C. 



South. 

 North. 



60° East of North. 

 60° West of North. 

 120° West of North. 

 120° East of North. 

 This perhaps seems rather complicated on paper, but in 

 practice, given the north and an equilateral triangle, it is quite 

 simple. 



A E produced is 



EA „ 



BE „ 



CD ,, 



FB „ 



DC ,, 



