September 2019 Announced Result by Abbott, Abel, Charlton, Demaine, Demaine, and Kominers

August 2017 - Further motivation for youthful Freese's travels

August 2017 - Swinging the pieces in Figure I158a

December 2017 - Photo of Freese's first wife Philippa, and a bungle-ode

December 2017 - Paul Peter Kiessig's early career

January 2018 - Gavin Theobald's improved icosagon to square

January 2018 - Misplaced Commas

January 2018 - Missing page reference for "translational dissection"

February 2018 - Typo on page 142

February 2018 - Gavin Theobald's further improvements

February 2018 - Text of Freese's book on perspective projection

February 2018 - A square to one isosceles triangle and also to another

February 2018 - Equiareal versus congruent triangles

March 2018 - Gavin Theobald's improved dissection for Figure I155

March 2018 - Missing page reference for "translational dissection"

May 2018 - Plate 178 can be made translational

June 2018 - Typo on page 126

June 2018 - Dissection in Figure I95c is not translational

June 2018 - Minimality of some dissections in Plate 76

July 2018 - A translational dissection for the square-sum class

July 2018 - Text of Freese's book on prespective projection and list of his articles and columns

July 2018 - Harry Lindgren's dissection of two dodecagons to one is translational

August 2018 - Hingeable dissection of an equilateral triangle to a Greek Cross

August 2018 - Hingeable dissection of ten pentagons to a decagonal ring

August 2018 - Figure I126 is suitably translational

September 2018 - Author of the

September 2018 - A translational dissection of three octagons to one with few pieces

September 2018 - Prepositional Illogic

October 2018 - Freese's Note on Plate 64

November 2018 - Translational dissection of a dodecagram to a hexagon

November 2018 - Missing references for stellated polygons

November 2018 - Missing references for co-polygrams

December 2018 - Capsized by captions!

January 2019 - Recognition of Freese's 1934 article, "Geometry of the human figure"

January 2019 - Plate 161 can be made swing- and twist-hingeable

January 2019 - Kiessig's Quote from Sir Walter Scott

Preface

Acknowledgments

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

Bibliography

Index

*Copyright 2019, Greg N. Frederickson*.

Permission is granted to any purchaser of
*Ernest Irving Freese's `Geometric Transformations': the Man, the Manuscript, the Magnificent Dissections!*
to print a copy of this page for his or her own personal use.

*Last updated February 5, 2019.*