A letter excerpt, likely by Charles F. Chandler (1836-1925) in which he posits that time spent extracting trace quantities of Arsenic from food coloring dyes is impractical as the proportion of Arsenic is too small to be harmful. Its extraction raises dye costs by a wide margin, despite being unnecessary.

Chandler was an American Chemist known for his work in public health and as a keen public health advocate and sanitation reformer. He also is a founder of the American Chemical Society and held many professional and public leadership roles throughout his career.