TL;DR: In the Natural History Reports collection as discussed by the authors, a tree-ring ring was digitized from a physical copy provided by the Laboratory of Tree-Ring Research at The University of Arizona.
Abstract: This item is part of the Natural History Reports collection. It was digitized from a physical copy provided by the Laboratory of Tree-Ring Research at The University of Arizona. For more information about items in this collection, please contact the Lab's Curator, (520) 621-1608 or see http://ltrr.arizona.edu/collection.
TL;DR: A rich and very well illustrated review of panorama paintings with references to their history is given in this article, where the restoration of the Atlanta Cyclorama is described and recent information on the history of American panoramas paintings is given.
Abstract: A richly and very well illustrated review of panorama (cyclorama) painting with references to their history. The restoration of the Atlanta Cyclorama is described, and recent information on the history of American panorama paintings is given. -- AATA