Mass dials, or scratch dials, are mediaeval sundials found on churches.Chronologically they appear after Saxon dials (c650 c1050) and before the present day's scientific dials, which have a sloping gnomon, which appeared in the 16th century but which only came to some rural areas in the mid 17th century.Both may be now viewed at the link above The Recorder's Reference?It provides anyone interested in dialling with a way to estimate by how much a non-direct-south vertical dial declines and also finds the design latitude for any horizontal dial. where you can check the value of Eo T at Noon on any date in 2018 (or even earlier years) and can even print all this year's data on one A4 sheet too.There's more there describing how to correct a sundial's solar time reading to GMT/BST and even a way to buy a little card that allows you to do this when out and about anywhere in the UK or Ireland!We are delighted to be able to provide as an academic resource the incredible output of the UK's foremost Diallist.Here Harriet James tells the story of the 'Simmons Bequest' that threw up the idea that the huge dial in All Souls College Oxford might be returned to its earlier place in the College.
article Harriet James describes the dials that have existed at New College Oxford - the college that was 'new' in 1379 - and gives an interesting insight to her replacement of one that was on the Muniment Tower in 1696.Click Way back in September 1992 super-sleuth John Ingram spotted this unusual and it is believed, unique, dial where steps on a triangular block were used to tell the time.When he returned in 2004 to York Rd on the South Bank in London to record it for the BSS Register, it was missing! Was it stolen or was it lost in the then recent Jubilee Line Tube works? The telegraph pole in the middle right of the larger image is said to mark the place where the Festival of Britain Skylon stood in 1951.Accordingly we have archived most of the older entries so that little or nothing is permanently lost.