![[Photolithographs in The gray substance of the medulla oblongata and trapezium]](https://bpldcassets.blob.core.windows.net/derivatives/metadata/commonwealth-oai:08612w710/image_access_800.jpg)
Dean, John, 1831-1888. The gray substance of the medulla oblongata and trapezium · 1864
"9 photolithographs with 36 photomicrographs of specimens by Lodowick Bradford, Boston. Lodowick H. Bradford, who invented this photolithographic process, produced very few examples of it."--Hanson Collection catalog, p. 28
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