Well firstly coincidence. My 'Salt Path' by Raynor Winn book ordered on Friday, arrived in the post on Saturday and then on Sunday who should be on the programme 'On My Farm' but the pair of them living down in Cornwall I think renting an old farm full of cider apples. You can hear the programme here.
The reason I think it is Cornwall, is that my second bantam was strutting round the lawn cross that she could not get in to the coop and I had to go out and attend to her noisy behaviour, so I missed the first part of the programme. Bad tempered bantams - who will take them on please?
But that is just first news on getting up this morning. Weaver cottages set me off on more history, and you can stop reading now if you feel you will be bored. But the history of glass is fascinating for what is a window without glass? Well early on in their history there was no glass, but coverings were improvised from shavings for instance from the horns of cows. Oiled cloth, preferably linen. and even thin sheet of semi-translucent stones such as mica or alabaster.
We know the Romans made glass and there has been found in this country fragments of Anglo-Saxon glass but glass making proper did not arrive till about the 13th century from France. The A/S glass had been found in monastic abbeys such as Monkwearmouth and Jarrow, Bede mentions it.
Quoting here from one of my favourite books, details below eventually, "the glass-maker needs soda and lime, but his principle requirement is pure silicia sand". Should the presence of iron oxide be found in the sand it would make the glass a dirtyish colour of grey or green/brown.
Well we do have pure sands in England and so for the monastic houses and rich over lords glass was made in this country from the 13th century. Glass was precious, and at Alnwick Hall, the expensive glass in 1567, was removed when the master was away for fear of damage from the weather.
What had made me stop and think though was the uniformity of the windows in the weaver houses. Mullioned stone verticals held the frame of the glass, and yet they look aesthetically unpleasing to the eye, and you begin to realise that windows are the eyes of a house, they frame a pleasing aspect. John Woods, in true architectural style had grasped this nettle in his buildings of Georgian Bath.
"Crown glass was one of the two most common processes for making window glass until the 19th century. ... The process of making crown glass window panes was perfected by French glassmakers in the 1320s, notably around Rouen, and was a trade secret. As a result, crown glass was not made in London until 1678" . taken from Wikipedia
Many early windows are framed in lead, we can all relate to that funny centre of a pane of glass which is like a bad lens. This is due to the making the glass, it is the central boss as the earliest glass was blown spinning in a circular fashion. Lead could not hold a great expanse of glass that is why we see leaded windows in their diamond frames in cottages.
'The glaziers' work before substantial was
I must confess, thrice as much lead as glass
Early frames could have been made of iron or copper, but wood eventually appeared and the price of glass windows was adjusted accordingly, and, of course the size. I have given a reference to crown glass above but it is interesting to note that Plate glass, which we see on any modern architectural programme as the 'in' thing to have only came into manufacture in the 1950s?, though the French had been there that much earlier. Again a different way of approaching glass making.
ref; Alex Clifton-Taylor. The Pattern of English Building. A book that would definitely travel with me to my 'Desert Island'
Observer article on the new book