Linen finishing

Chemistry notebooks with cloth samples, from Powers' work at Silver Spring Bleaching & Dyeing Company, Providence, Rhode Island. Also notes concerning linen bleaching & dyes and dyestuffs. Also essay on history of dyes and dyestuffs written by Powers' daughter, Dorothy Powers, while she was a student at Thayer Academy, Braintree, Massachusetts. She mentions her father's role in synthetic dye manufacture.

Includes accounts and statistics for spinning mill, weaving, and bleach house, plus weekly and monthly statements; a balance statement, inventory, and a report on finishing of linens. Also includes a report entitled, "Flax mills in Ontario and estimate of fibre for sale, 1916-17," and reports from Dun & Co. and National Credit Office on various linen companies and linen jobbers.