1845-06-14 Bigelow Chapel Stained Glass: Jacob Bigelow to Ballantine & Allan (page 4)

The 4 aisle windows being intended to
open, or shove up, ^ will have a bar across the middle
I shall get executed here
of the upright part. The height of the mullions is eight feet, from the
in send plain manner; But the tops of these
bottom of the caps to the top of the bases. The clear space between the mullions
windows. I wish you to execute in some simple
is 18 1/2 inches. For these windows executed in some simple manner ^ as you propose we
folicated manner value 3 or 4 pound each.
will pay you ten pounds each.
and according to the patterns which you will find
in the roll. Please observe that the small arches
& circles have been altered since the lithograph,
but the paper patterns are right. The cast iron circle (10.)
^ appears in both the nave & aisle windows.

Immediately after receiving this, I
request you to write to me by ^next steamer, 1. Whether
you accept the commission as above stated. 2. What
will be the thickness of your pannels and ^f the frame
& material which holds them, & what should be the
exact shape & depth of the rebat into which the
glazier is to set them. Our Rose window is cast
in two halves one of which ^(the inside one) is to be screwed to the other ^in parts
to hold with the glass between ^& can be unscrewed for repairs. The long windows have a
common rebat [sketch]. 3. How are your mosaic pieces
attached together, by fusion, or mechanically? If the
former, how are they repaired? 4. Do you keep
such references that in case of accident you can
replace any broken panes.

The following are the dimensions of the great Nave window

Height of cap & foot of shaft or mullion 1 foot
Do [ditto] of base 1 foot
Do [ditto] of shaft between cap & base 10 feet 10 inches
Clear space for glass between mullions 1 foot 9 1/2 inches

If you have any alterations to suggest, please write & I will answer immediately