Fig.8.1 Swift’s Hollow, Cromford: feeding troughs in outer exercise yard of pigcote, constructed in the late 18th to early 19thcentury (Derwent Valley Mills Partnership 2011. The Derwent Valley Mills and their Communities, Matlock: DVMP, 40; see also Fig. 4.46; photograph: David Knight Trent & Peak Archaeology)
Alluvium: geologically, this term can apply to any sediment transported by rivers, but within the archaeological and geological communities its use is usually restricted (as here) to overbank fine-grained silts and clays deposited on floodplains.
Cluster house: a freestanding block of four houses, formed of two adjoining pairs of back-to-back dwellings. Each house in a cluster was provided with two external walls, in contrast to back-to-back houses built in longer rows, thus aiding ventilation (eg Cluster Buildings, Belper).1
Colluvium: collective term for eroded soil and other sediment moved downslope by a combination of processes, including the forces of gravity and hillwash.
Framework knitter: manufacturer of stockings and other clothing using a manually operated knitting frame.
Fulling mill: mill where cloth is shrunk or compacted by vigorous pounding in combination with water and a fulling agent such as human urine.
HER: Historic Environment Record (Chapter 5.14).
Jenny: manually operated multiple-spindle spinning machine, invented by James Hargreaves in the 1760s and ideally suited for cottage and workshop production.
Leat: an artificial channel commonly associated with the delivery of water to a mill wheel or with its discharge from the wheelpit.
Lidar: an acronym of light detection and ranging, this describes the method of measuring three-dimensional data points by airborne or ground-based laser scanning (permitting, for example, detailed plotting from the air of the spatial pattern of palaeochannels and earthworks indicative of human activity).
Meander core: area bounded by a highly sinuous river channel.
Mule: spinning machine combining the drafting rollers of the water frame with the moving carriage of the spinning jenny, invented by Samuel Crompton in the 1770s.
Nailshop: workshop for the manual manufacture of nails from iron bars.
Palaeochannel: abandoned former river channel, often infilled by fine-grained sediments, including peat. They may survive as linear depressions of varying depth that may sometimes contain standing water; commonly marked by hedgelines, modern drainage ditches, bands of woodland or parish boundaries.
Pigcote: small and permanent house for the rearing of pigs, incorporating a shelter and an exercise yard with feeding troughs.
Ridge and swale: topography of multiple scroll bars (low curving ridges of sand and gravel that represent former meander cores, separated by sinuous channels that carry floodwaters during periods of high river flow). They provide evidence for rivers migrating laterally across their floodplains.
Sough: artificial underground channel for the drainage of water from lead mines.
Water frame: the water-powered frame developed by Arkwright for spinning cotton.
Reference
1 Menuge, A 1993 ‘Thecotton mills of the Derbyshire Derwent and its tributaries’. Industrial Archaeology Review 15 (1) 59, fig.9