Black Duck Stereogram
Stereogram, Black Duck. Hurst's Stereoscopic Studies of Natural History: For Object Teaching in Schools and Parlor Entertainments, 1870, front cover, 1870, Hurst, James A., published by Hurst & Sons
James Hurst published a series of stereograms depicting taxidermied animals in prepared natural poses or amusing scenes. This example, taken from Hurst's "First Series (North American)" collection, presents an example of an animal in a more or less accurate environmental setting.
Click here for a GIF version of the stereogram, which provides an approximation of how the image would appear when viewed through a stereoscope. Stereographic viewing: 3D movies, the early years.
Crowded room at a fashionable watering place
Stereogram, Crowded room at a fashionable watering place. Hurst's Stereoscopic Studies of Natural History: For Object Teaching in Schools and Parlor Entertainments, 1870, 1870, Hurst, James A., published by Hurst & Sons
In contrast to the example above, this stereogram (taken from Hurst's "Second Series (Miscellaneous)" collection) shows an amusing scene in which stuffed animals are posed in a human context. Hurst's stereogram series accurately represent the popular view of natural history at the time: a mixture of formal study and informal amusement.
How to Stuff Birds and Animals: a Valuable Book Giving Instruction in Collecting, Preparing, Mounting, and Preserving Birds, Animals, and Insects, front cover, 1890, published by Frank Tousey: New York, USA
The cover illustration of this how-to book depicts a variety of animals in various states of preservation, including an owl, a rabbit, a snake, and a heron. By the 1870s, instruction manuals for the capture, killing, and stuffing of animals were in wide circulation for young boys. Collections of small- or medium-sized animals allowed young people to observe and learn about the natural world around them, thus providing both entertainment and study.
 Pets in America, p. 148, 2006, Grier, Katherine C., published by the University of North Carolina Press: Chapel Hill, USA