The volumes record approximately 5,500 surgical operations performed at Presbyterian Hospital from 1900 to 1912. The entries usually contain the patient's name, age, address, date of admission, and date of operation. In addition, the cause and description of the disease or injury, the condition of the diseased or injured parts at the time of operation, and the progress, complications, and outcome of the operation are often included. Temperature charts, diagnosis reports, and photographs of patients are sometimes found. It is not known if these were all Eliot's operations: the first volume is titled as such, but the remaining two are not.
Because Protected Health Information (PHI) as defined by the US Health Insurance Portability and Accountability Act (HIPAA) may be found throughout the volumes, access is allowed only under terms of Archives and Special Collections' Access Policy to Records Containing Protected Health Information.