This collection includes 468 glass lantern slides dating from 1897 to about 1902, apparently used by Mira Lloyd Dock in her lectures at the Mont Alto Forestry School. Many of these photos were taken at Wetzel's Swamp near Harrisburg (now Wildwood Park) but other states and European sites are also represented. Most are black and white, but a few of the slides of plants were beautifully hand-colored. The collection provides an interesting perspective on ecology a century ago and a view of the broad interests of Dock, who was a noted champion for the city beautiful movement and for the restoration of Pennsylvania's forests – as well as the first woman to be appointed by a Pennsylvania governor.
