A cornerstone of scientific inquiry, Smithsonian Miscellaneous Collections (Volume 71) Number I: Smithsonian Physical Tables stands as a testament to the precision and ambition of early 20th-century science. In an era when the boundaries of physics and engineering were rapidly expanding, Frederick E. Fowle gathered and curated the most authoritative scientific reference tables, creating an indispensable physical constants handbook for laboratories and classrooms alike. Here, the intricate language of units and measures, conversion factors tables, and thermodynamic properties data is rendered accessible, enabling both seasoned researchers and inquisitive students to navigate the complexities of metrology standards and technical data with confidence. This engineering reference book is more than a compendium; it is a bridge to the intellectual spirit of its time, offering laboratory calculation aids that have guided generations of experimenters. Every page reflects the Smithsonian's dedication to accuracy and clarity, making it a trusted physics students reference and a vital resource for anyone seeking reliable data in the physical sciences. The volume's enduring value lies in its meticulous approach to the fundamentals - from constants and coefficients to the essential frameworks that underpin scientific progress. Republished by Alpha Editions in a careful modern edition, this volume preserves the spirit of the original while making it effortless to enjoy today - a heritage title prepared for readers and collectors alike. For those drawn to the legacy of Smithsonian scientific publications, or simply in need of a reliable technical data compendium, this work offers both practical utility and historical resonance. It is a cultural treasure, inviting both casual enthusiasts and classic-literature collectors to experience the rigour and elegance of scientific tradition.