The Ohio State University Research Foundation Data Research Notebooks are microfiche copies of notebooks produced by the Ohio State University Research Foundation. The notebooks contain recordings of laboratory notes such as logs, graphs, drawings, and procedure descriptions. The entries usually record the names of observers and workers, and are signed and dated. The collection also contains a set of duplicate microfiche, a set of duplicate vesicular microfiche, and a set of diazo microfiche. The notebooks have some confirmed original document dates circa 1945, but the vast majority have unknown dates, and the microfiche itself is undated.