Notes:
Batch book.
"Pittsburgh, Pa., June 1887, Glass"--1st prelim. p.
Pages 44-192 are blank.
Tipped in back: "Formula for no. 16 optical glass by Feil and believed to be correct"; ruby recipe labeled "dark" and "too black"; ruby recipe dated Oct./96 "made bright red ruby".
Digitized by Boston Photo Imaging May 2014.
CMGL owns an optical glass manuscript by Feil which had previously been in the possession of George A. Macbeth. Perhaps this batch book also belonged to Macbeth.
Contents:
Flint of lead glass --
Copper ruby glass --
Green glass for lantern globes etc. --
Green for lenses to make [proper?] shades --
[Ruby] --
Purple --
Yellow "amber" --
Green glass for half green globes --
Purple --
For silvering glass --
Paste for using in iron moulds for "turning" the glass when blowing --
Paste for moulds --
Lime glass --
Later ruby formula --
Lime glass batches --
Batch for holophane glass --
"Cerise" red glass --
"Cerina" yellow glass --
"Cerise" for lead glass casing ruby --
Pure blue glass.