This case deals primarily with the infringement of Stephen D. Field's U.S. Patent No. 407,188 for electric railways. The testimony by Edison and his associates, along with related exhibits, provide information concerning Edison's own involvement in electric railway technology. The following items have been selected:

• Defendant's Proofs, Vol. I: Depositions
• Testimony by Charles T. Hughes, Charles Batchelor, John Kruesi, Francis R. Upton, Charles L. Clarke, Thomas A. Edison, and Sherburne B. Eaton
• Defendant's Proofs, Vol. II: Exhibits
• Testimony Edison Sketches #1-11
• Scientific American articles by Edward Weston, Charles A. Seeley, and Francis R. Upton
• Edison Photographs #1-24