Original sentence: From southeast to northwest the diameter reportedly measures , but when measured from east to west, the diameter lengthens to , however, the 19th century measurements of the interior gave an east-west dimension of , which was slightly shorter than the north-south measurement of , suggesting that the discrepancies may be due to the unevenness of the rubble masonry
Edited sentence: From southeast to northwest the diameter reportedly measures , but when measured from east to west, the diameter lengthens to , although curiously, 19th century measurements of the interior gave an east-west dimension of , which was slightly shorter than the north-south measurement of , suggesting that the discrepancies may be due to the unevenness of the rubble masonry