<div class="description">
<dl><dd>Includes bibliographical references (pages 110-111)</dd>
<dd>Microfilm</dd>
<dd>Condition reviewed</dd>
<dd>digitized</dd></dl><br>Subjects: Color Vision; Color Vision Defects; Vision Tests; Railroads</div>
<div class="fn value">
Jennings, J. Ellis (John Ellis), 1864-1906, author</div>
Internet Archive identifier