<div class="description">
<dl><dd>"Read before the Albany Institute, Feb. 17th, 1863."</dd>
<dd>Condition reviewed</dd>
<dd>digitized</dd></dl><br>Subjects: Sunlight; Spectrum Analysis</div>
<div class="fn value">
<dl><dd>Townsend, Howard, 1823-1867</dd>
<dd>Albany Institute</dd></dl></div>
Internet Archive identifier