ON ITER XV. OF THE ITINERARY OF ANTONINUS. 123 



The distance between Old Sarum and Dorchester by the line 

 of the Eonian road is, according to the last measurements of the 

 Ordnance Survey, 40^ miles (English), or 43^ miles (Eoman), 

 whilst by the notation above the distance is 20 miles only, so 

 that there is a difference of 23 miles at least between the ancient 

 and modern notation to be explained. 



To meet this discrepancy it was suggested by Dr. Stukeley 

 that an intermediate Station had been lost, which might be 

 recovered in the Ibernio of the Eavenna Greographer.'^' This 

 suggestion has been carried out by Mr. Warne, E.S.A., by shew- 

 ing that the site of Ibernio may be found at Winterborne 

 Kingston! which, according to the Ordnance Survey, is 10 miles 

 and a half (English), or 11 miles and a half (Eoman) from 

 Dorchester. I In adjusting the distances, it was also necessary 

 to increase the distance from Sorbiodunum to Vindogladia, mak- 

 ing it 16 instead of 12 miles. 



Here we observe, that the interpolation of a Station is con- 

 jectural, and that the numerals to both Stations are at variance 

 with those in the Itinerary. 



The distances in English and Eoman Miles between Old Sarum 

 and Dorchester, and the Intermediate Stations, from the 

 Ordnance Survey, viz. : — 



*Stukeley placed Ibernio at Bere. Iter vii., p. 204. 



t" Ancient Dorset," C. Warne, F.S.A., p. 207. 



jLength of the Roman mile : — For all practical purposes it is sufficient 

 to put the Koman mile at about 150 yards shorter than the English — 



Yds. English. Feet. 



1760 X 3 = 5280 



Roman mile . , . , 4840 



•440 ft. 



440 X 12 = 5280ft. (English mile.) 



12 Roman miles ^ 11 Engl.; 1 mile E. = 5280ft. x il = 58080ft. 



1 mile R. = 4840ft. x 12 = 58080ft. 



