Scientific American Supplement, No. 1157, March 5, 1898

The March 5 1898 issue of the Scientific American Supplement captures late‑Victorian curiosity with a broad mix of articles on archaeology, engineering, medicine, and the social sciences. It includes a detailed portrait of the newly crowned German Emperor Wilhelm II, alongside reports on tunnel heating, electric rheostats, and ocean currents affecting climate. Practical pieces describe how to measure tree volume, novel bicycle techniques, and new methods for producing artificial India rubber. The tone reflects a period eager to catalogue progress while confronting social challenges.

The biography of Wilhelm II examines his military background, patriotism, and blunt personality, shedding light on why he was both admired and criticized across Europe. Engineers will find a clever mould‑making machine illustrated in detail, plus a report on Koppel electric locomotives for narrow‑gauge railroads. Natural‑history readers get a glimpse of tapirs in the Breslau zoo, and physicians see an overview of medical education and anesthesia risks. Together, these articles offer a vivid picture of a world on the cusp of modernity.