Note: - Vol. 2 (July - Dec. 1864) has sub-title: "with many additional solutions not published in the 'Educational times'". Vol. 3 ff. have sub-title: "with many solutions not published in the 'Educational times'"
- ULL copy is from the library of Augustus De Morgan.
- ULL copy is bound in 3 vols., comprising v. 1-4 (1864-1866), v. 5-8 (1866-1868) and v. 9-12 (1868-1869) respectively.
- DOI: 10.1163/9789004460409_MOR2-b29286256