While both Title and Practice Acts focus on the health, safety and welfare of the public, Practice Acts require that interior design services be provided by a licensed design professional. They are the most restrictive type of occupational regulation in that they prohibit unlicensed people from providing interior design services.
They ordered equipment from Europe, and on April 19, 1937, they formed Perkin-Elmer as a partnership. Perkin and Elmer started their optical design and consulting business in a small Manhattan office, but within a year they were producing optical components in Jersey City, New Jersey.
The solution of it resulted in a strangely beautiful color. Perkin had stumbled across the world's first aniline dye, a color that became known as mauve. So what? you might say. A teenager invented a new color. As Simon Garfield admirably points out in Mauve, the color really did change the world. Before Perkin's discovery all the dyes and paints were colored by roots, leaves, insects, or, in the case of purple, mollusks.