The singular vision of William Charles Wells (1757-1817)

William Charles Wells retained an interest in vision throughout his life. His first book was on single vision with two eyes; he integrated vision and eye movements to determine principles of visual direction. On the basis of experiments and observations he formulated three principles of visual direction, which can readily be demonstrated. In the course of these studies, he also examined visual acuity, accommodation and convergence, visual persistence, and visual vertigo. Insights into visual processing were mainly derived from observations of afterimages that were used to provide an index of how the eyes moved. His experiments enabled him to distinguish between the consequences of active and passive eye movements (later called outflow and inflow) as well as describing nystagmus following body rotation. After providing a brief account of Wells's life, his neglected research on vision is described and assessed.     

Roman London

This paper discusses two fragmentary stone pillars, one decorated, which were recently discovered at Trefollwyn, near Llangefni, Anglesey. These are the first examples of their kind from Britain but they belong to a tradition of La Tène carved stone pillars from the Rhineland, Brittany, and Ireland. They may be connected with burial. In antiquarian sources an early Christian inscribed stone (fifth-sixth centuries A.D.), now lost, was reported from Capel Heilin in the same immediate vicinity and suggests that the area was used for burial in the early medieval period.     

Further Notes in Reference to the Discoveries at Ickleton and Chesterford

Abstract

Although it is generally well-known that a number of cathedrals and major abbeys in medieval England especially had detached bell towers, the towers themselves have never been considered as a group. Nor has a ‘complete’ listing been attempted. Their existence is difficult to explain because the majority of these buildings also had central towers and some had western towers. No doubt because so many of the detached towers have been destroyed, they are less well-known than the examples on the Continent, especially in Italy. Surprisingly, towers seem to have been rare in Romanesque and Gothic France and Germany. The Insular ones appear to have been less ‘standardized’ in their design and more variable in their location vis-à-vis the church building than those of Italy. The history of detached towers in England (and Scotland) is here traced from their earliest appearance, in wood in the 12th century and in stone c. 1200, to the end of the Middle Ages.     

The Changing Exploitation of Oysters (Ostrea edulis L. 1758) in Late Medieval and Early Modern England: A Case Study from Dudley Castle,West Midlands

ABSTRACT

Analysis of over 4000 complete left oyster valves from late medieval and post-medieval Dudley Castle reveals the changing role of this perishable luxury over a 700-year period. Throughout the occupation, it seems that oysters were used as ingredients rather than served raw in the shell. A greater reliance on oyster consumption is apparent in the later fourteenth century, perhaps reflecting a more diverse diet amongst the aristocracy in the wake of the Black Death. An increased preference for mussels and whelks is also attested in the Tudor and early modern periods, reflecting changing perceptions of these foods.

Overall, it is likely that natural beds were exploited throughout the time that oysters were being brought to Dudley Castle; however, the evidence demonstrates a shift from limited exploitation of natural inter-tidal sources in the eleventh century towards the dredging of sub-littoral beds in later periods, with some possible translocation of oyster stock. Changes in the shape, size and appearance of the oyster shells suggest the source locales from which the oysters derived changed through time. A notable shift occurred in the fourteenth century, which could reflect changes in supply brought about by altered tenancy at Dudley Castle and/or disruptions to trade brought about by the Black Death. Future biochemical analyses are recommended to provide greater clarity on the origin of those sources.