Using a Surface Triangle to Explore Curvature
James Casey
	Investigating triangle angle sums on various surfaces, e.g., bananas, soap bottles, 
	watermelons, etc.
	(87, 1994)  69 - 77

Bringing Non-Euclidean Geometry Down to Earth
Catherine Folio
	A "sharing teaching idea."  Drawing triangles on a styrofoam ball.
	78, (1985)  430 - 431.

An Improvement on SSA Congruence for Geometry and Trigonometry
Shraga Yushurum and David C. Kay
	Conditions under which SSA yields congruence.  A result for
	non-Euclidean geometry is also presented.
	76, (1983)  364 - 367.

A Student Presented Mathematics Club Program - Non-Euclidean Geometries
Leroy C. Dalton
	Suggested program topics.
	73, (1980)  451 - 452.

Neutral and Non-Euclidean Geometry - A High School Course
Peter A. Krause and Steven L. Okolica
	Content of a classroom tested introduction to non-Euclidean geometries.
	70, (1977)  319 - 324.

Taxicab Geometry
Eugene F. Krause
	Geometry on a grid, comparison to Euclidean geometry.
	66, (1973)  695 - 706.

Taxicab Geometry - A Non-Euclidean Geometry Of Lattice Points
Donald R. Byrkit
	An axiomatic presentation of a geometry of lattice points.
	64, (1971)  418 - 422.

A Non-Euclidean Distance
Stanley R. Clemens
	A metric on RxR (different from the usual) which yields unique parallels.
	64, (1971)  595 - 600.

The Parallel Postulate
Raymond H. Rolwing and Maita Levine
	Historical notes on attempts at proof.
	62, (1969)  665 - 669.

Equivalent Forms Of The Parallel Axiom
Lucas N. H. Bunt
	Reprint from Euclides.  Equivalences and proofs.
	60, (1967)  641 - 652.

Saccheri, Forerunner Of Non-Euclidean Geometry
Sister Mary of Mercy Fitzpatrick
	History and some examples.
	57, (1964)  323 - 331.

Introduction To Non-Euclidean Geometry
Wesley W. Maiers
	Directional parallels, quadrilaterals, triangles, some exercises.
	57, (1964)  457 - 461.

The Saccheri Quadrilateral
Louis O. Kattsoff
	An introduction to non-Euclidean geometries.
	55, (1962)  630 - 636.

Problems In Presenting Non-Euclidean Geometries To High School Teachers
Louis O. Katsoff
	Nature and uses of non-Euclidean geometries.
	53, (1960)  559 - 563.

Polar Maps
John Kinsella and A. Day Bradley
	Some spherical geometry.
	42, (1949)  219 - 225.

The Lessons Non-Euclidean Geometry Can Teach
Kenneth B. Henderson
	Riemannian and hyperbolic geometries involved.
	33, (1940)  73 - 79. 

The Extension Of Concepts In Mathematics
Aubrey W. Kemper
	Infinite elements in geometry, non-Euclidean geometries,
	four-dimensional geometry.
	16, (1923)  1 - 23.

Some Varieties Of Space
Emilie N. Martin
	Non-Euclidean geometries discussed.
	16, (1923)  470 - 480.

"Steradians" and Spherical Excess
George W. Evans
	Some geometry on a sphere.
	15, (1922)  429 - 433.

Non-Euclidean Geometry
W. H. Bussey
	History.  Some results in hyperbolic and elliptic geometry.
	15, (1922)  445 - 459.

Philosophy and Non-Euclidean Geometry
F.A. Foraker
	The philosophical implications of non-Euclidean geometries.
	11, (1918-1919)  196 - 198.

Solid Geometry
Howard F. Hart
	Some geometry on a sphere.
3, (1910-1911)  24 - 26.

Some Thoughts On Space
E. D. Roe, Jr.
	With reference to the philosophy of Kant.
	2, (1909-1910)  31 - 38.

H.J.L.
07/15/97
email:  00hjludwig@bsu.edu
home page: http://www.cs.bsu.edu/~hjludwig/