Among the many theorems in geometry found in this work are the theorems of Ceva, Menelaus, Pappus, Desargues, Pascal, and Brianchon. A proof is given of Morley'... » 

Among the many theorems in geometry found in this work are the theorems of Ceva, Menelaus, Pappus, Desargues, Pascal, and Brianchon. A proof is given of Morley's theorem on angle trisectors. The transformational point of view is emphasized throughout. «