You are actually likely referring to "Chemical Calculations" by Frank C. Benson

I think most probable

Sidney W. Benson’s contributions to chemical calculations represent a triumph of logical synthesis. By recognizing that molecules obey the laws of statistical probability and that their bulk properties are the sum of discrete, quantifiable interactions, he demystified the energy of the chemical bond. Whether accessed through his seminal books, PDF excerpts circulated in universities, or integrated into modern software, the "Benson Method" remains a vital tool. It taught chemists that with the right mathematical framework and a deep understanding of structure, the complex dance of atoms could be calculated, predicted, and ultimately, mastered. His work ensures that chemical calculations are not merely numbers on a page, but a window into the invisible architecture of the material world.

VIII.

VI.