Notes:
Caption title.
"The Hartford-Empire Company is a research, engineering, servicing and manufacturing company. By its research, experimental and engineering activities it invents and develops improved manufacturing processes and equipment for making better glassware at lower costs. It leases such processes and equipment to glassware manufacturers ... it does not, however, make glassware for sale, but only for experimental and test purposes in its own experimental glass factory."
"March, 1940."
Leaf 41 (photograph for leaf 40 and text for photograph 2492) missing. The photograph that follows leaf 68 has a duplicate leaf 66 on the verso which appears to have been glued to the back board of the cover.
Accompanied by an additional photograph of a scientist examining jars by passing light through them. Verso has pencilled "Neg #12 7/23/42".
