author
Best known for co-authoring a long-running textbook on assaying, this writer helped make the practical science of testing ores and metals more accessible to students and mining professionals. His work remained in circulation through multiple editions, showing its lasting usefulness.

by C. (Cornelius) Beringer, J. J. (John Jacob) Beringer
Cornelius Beringer is known as the co-author of A Text-book of Assaying, a practical guide for people working with mines and metals. Surviving catalog and digitized book records identify him alongside John Jacob Beringer, and the book was published in several editions over the years, suggesting it was widely used as a technical reference.
The available sources in this search do not reveal much personal background beyond his authorship. Because of that, the clearest picture of him is through his work: a straightforward instructional book focused on assaying, the testing and analysis of ores and metals for mining and metallurgy.
No reliable portrait image was confirmed in the sources reviewed here, so a profile image is not included.