BAILLAIRGÉ, Le stéréométricon, 1884

First edition.
Charles Baillairgé (1826-1906) was a Quebecois architect, engineer, and land surveyor. He was the president of the Canadian Institute of Quebec. This work is a technical treatise on stereometry, the measurement of volumes. It proposes a new calculation method based on the prismoidal formula and includes tables for calculating surfaces and volumes, making it a reference tool for professionals of his time.