Ernest Irving Freese's Geometric Transformations: the Man, the Manuscript, the Magnificent Dissections! by Greg Frederickson

Most recent additions to these updates

August 2017 - Further motivation for youthful Freese's travels
August 2017 - Swinging the pieces in Figure I158a
December 2017 - Photo of Freeses's first wife Philippa
December 2017 - Paul Peter Kiessig's early career
January 2018 - Gavin Theobald's improved icosagon to square
January 2018 - Misplaced Commas

All updates, including typos, by chapter

1. The Rich History of Geometric Dissections
2. The "Wild Adventures" of Ernest Freese
3. Techniques, Special Properties, Hardness
4. Freese's Title Page and Index
5. Isosceles Triangles
6. Equilateral Triangles
7. Squares, Crosses, Rectangles
8. Pentagons and Pentagrams
9. Hexagons and Hexagrams
10. Octagons and Octagrams
11. Enneagons (Nonagrams)
12. Decagons and Decagrams
13. Dodecagons and Dodecagrams
14. Many-sided Polygons
15. Miscellaneous Figures
16. More Crosses
17. More Miscellaneous Figures
18. Mixed Polygons to One
19. Special Triangles
20. From the Past, Into the Future

Copyright 208, Greg N. Frederickson.
Permission is granted to any purchaser of Piano-hinged Dissections: Time to Fold! to print a copy of this page for his or her own personal use.

Last updated January 11, 2017.