6 books
A Report on the Cretaceous Paleontology of New Jersey; Based Upon the Stratigraphic Studies of George N. Knapp; Volume 2
The Foundry Sands of Minnesota (Classic Reprint)
The Quaternary Formations of Southern New Jersey
A Report on the Cretaceous Paleontology of New Jersey
A Report on the Cretaceous Paleontology of New Jersey a Report on the Cretaceous Paleontology of New Jersey
The Clays and Clay Industry of New Jersey