[Article] Control of the dangers from defective vision Adjust Share By B. Joy (Benjamin Joy) Jeffries, This article is only available as a PDF to subscribers. Download PDF Tags 19th century Color blindness Law and legislation Railroads Safety regulations Ships Signal lights Testing United States Vision Vision disorders More from B. Joy (Benjamin Joy) Jeffries Adjust Share Close < Previous Issue | View All Issues | Next Issue > May 1884 < Previous Issue | View All Issues | Next Issue > Table of Contents Close