拍品专文
Knorr was an engraver of copper plates as well as one of the leading protogeologists of the 18th century. "It is scarcely an exaggeration to say that the beauty of some of Knorr's illustrations exceeds that of their models and that in all cases the artist's eye has transformed neutral, natural objects into permanent, formal aspects of humanism. The detail and accuracy of Knorr's engravings not only made possible zoological classification but firmly established the distinction between fossils of organic origin and sports of nature" (DSB).