- 192 -

`15. Archibald Henderson, "A Postscript to an Earlier Article," `*Scripta Mathematica, *22
(March 1956), 81, 84.

`16. Joseph Holzinger, "The Problem of the Angle Bisectors," `*The Mathematics Teacher, *56
(May 1963), 321-322.

`17. L.M. Kelly, (Equal symmedians), Solution of problem E613, `*American Mathematical
Monthly, *51 (Dec. 1944), 590-591.

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*18. Lady's and Gentleman's Diary *(1859), p. 88.

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`19. Louis Leitner, Harold Grossman, and Joseph Lev. (Equal internal bisectors), Three solutions of problem
1283, `*School Science and Mathematics, *33 (October 1933), 781-783.
20. C.I. Lubin, "The Theorem of Lehmus and Complex Numbers," *Scripta Mathematica, *24
(June 1959), 137-140.

`21. David L. MacKay, "The Lehmus-Steiner Theorem," `*School Science and Mathematics, *39
(June 1939), 561-562.

`22. David L. MacKay, "The Pseudo-Isosceles Triangle," `*School Srience and Mathematics, *40
(May 1940), 464-468.

`23. Sharon Murnick, (Equal external bisectors), Solution of problem 34, `*The Pentagon,
*13 (Fall 1953), 35-36.

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`24. Neilson, Wm. `*A., Roads to Knowledge, *Halcyon House, New York (1941), p. 250.

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`25. H. Clark Overley, "The Internal Bisector Theorem," `*School Science and Mathematics, *64
(June 1964), 463-465.

`26. Mary Payne, N.D. Lane, and Howard Eves, "The Generalized Steiner-Lehmus Problem,"
Three treatments of problem E863, `*American Mathematical Monthly, *57 (January 1950), 37-38.

`27. F.A.C. Sevier, "A New Proof of an Old Theorem," `*The Mathematics Teacher, *45 (Feb.
1952), 121-122.

`28. Victor Thebault, "On the isosceles triangle," `*American Mathematical Monthly, *45 (May
1938), 307-309.

`29. Victor Thebault, Solution of problem E339, `*American Mathematical Monthly, *46 (May
1939), 298-299.

`30. Victor Thebault, "Au sujet d'un cas d'egalite des triangles," `*L'Education
Mathematique, *56e Anne, Mars 1954, No. *11, p. 81.*

`31. Victor Thebault, "Congruent triangles (fifth case) and the theorem of Lehmus," `*The
Mathematics Teacher, *48 (Feb. 1955), 97-98.

`32. Victor Thtsbault, "The Theorem of Lehmus," `*Scripta Mathematica, *22 (March 1956), 20.

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`33. Todhunter, `*The Elements of Euclid, *Macmillan, London (1883), 316-317.

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