After careful study of the Domesday Survey of Leicestershire, I definitely hold that in that county 'carucata terræ' was the geld-carucate and 'terra _x_ car[ucis]' the actual ploughlands.[158] Now there are only three instances in which the Survey records the assessment both in terms of the 'hida' and in 'carucatæ terræ', and in all three the figures support my own theory. The Abbot of Coventry's Burbage estate (231_a_, 2), where a 'hide' and a quarter equates 22-1/2 'carucatæ terræ', is a test-case, and Mr Stevenson there takes refuge in a suggested 'beneficial hidation'. The exact formula, no doubt, is peculiar, but reference to the text shows that 's[un]t' has been interpolated between 'ibi' and 'xxii.' I suspect that the scribe had written 'ibi' (from the force of habit) when he ought to have written 'id est'. I close this portion of my essay by applying my own theory to the case of 'Erendesbi' (Arnesby). The relative entries are: 'Episcopus Constantiensis tenet in Erendesber iii^{as.} car[ucatas] terræ et dim. et unam bovatam (231).' 'W[illelmus] Pevrel tenet dim. hidam et iii. bovatas terræ in Erendesbi (235).' Put into figures they work out: _Car._ _Bov._ Bishop of Coutances 2-1/2 1 William Peverel 9 3 ------------ 12 0 So that Arnesby was a typical Vill assessed at twelve carucates.[159] IX. THE LANCASHIRE 'HIDA' There is one other case of a peculiar 'hide' in Domesday. This is that which is found in the land 'between Ribble and Mersey', that district of which the description offers so many peculiarities. We find it divided into six hundreds, and of the 'hides' in the first, that of (West) Derby, we read: 'In unaquaque hida sunt vi. carucatæ terræ' (i. 269_b_). Whether or not that explanation applies, as is believed, to the whole district, we have here again a 'Danish' place-name brought into direct relation with the six-carucate unit. On the opposite bank of the Mersey lay the Wirral peninsula, in which this system of assessment cannot be traced.