Note 11 — Chapter VII · ASTRONOMICAL OBSERVATIONS AT STONEHENGE IN 1901[11]
Reading edition
This chapter and the end of the previous one are mainly based on the paper communicated by Mr. Penrose and myself to the Royal Society (see Proceedings, Royal Society, vol. 69, p. 137 et seq.).
[12] The Celtic Druids. 4to. London. 1827.
[13] Stonehenge, &c. 1880.
[14] Smithsonian Contributions to Knowledge, vol. xviii. No. 232, table 9. Washington. 1873. For curve, see page 130.