The River's End and it furnishes the mathematician

and it furnishes the mathematician with a logical step-by-step introduction

alternate approximate methods

La Traviata is based on La Dame aux Camélias ("Camille")

All of the illustrations are accompanied by identifying captions

" then appeared in the magazine

The River's End and it furnishes the mathematicianFor four long years, Derwent Conniston has chased outlaw John Keith across the Canadian Arctic. Conniston, a member of the Royal Northwest Mounted Police, falls gravely ill in the course of his dogged pursuit, and to his amazement the accused murderer comes to his rescue. Although they're on opposite sides of the law, the two men find they have a remarkable lot in common, including an uncanny physical resemblance. By the time Conniston realizes that