**Alicia Boole Stott**

Alicia Boole Stott was an Irish woman of the end of the 19th century who worked on four dimensional geometry. Although she never studied mathematics, nor went to a University, she learned herself to ``see'' the fourth dimension. She is remembered for finding all three dimensional sections of the four dimensional polytopes (i.e., the analogues of the Platonic solids in three dimensions), and for the discovery of many of the semi-regular polytopes. She built beautiful models of the sections of the polytopes. Due to her close collaboration with Professor P. H. Schoute of Groningen, a collection of some of her models is present at the University of Groningen.

**
**

Name | Title | Date of Making | Object | Material |

120-cell-D | Diagonal sections 120-cell | ~1890 | 2D drawings | Paper |

120-cell-D | Diagonal sections 120-cell | ~1890 | 3D model | Cardboard |

600-cell-P | Perpendicular sections 600-cell | ~1890 | 3D model and 2D drawing | Cardboard and paper |

600-cell-D | Diagonal sections 600-cell | ~1890 | 3D model and 2D drawing | Cardboard and paper |