The Ohio Journal of Science. Vol. XVI., No. 2 (December, 1915)

A snapshot of early 20th‑century scientific life, this issue gathers concise research from Ohio’s leading scholars and the broader academic community. Published by a university society, it blends practical agriculture, emerging engineering, and pure science, reflecting the collaborative spirit of a regional academy eager to share fresh observations.

Highlights include a detailed survey of tiny galls on hickory leaves, where the author catalogues dozens of mite‑ and aphid‑induced growths collected across several states. A mathematician offers a clear exposition of the geometry behind the translated normal curve, while an entomologist provides a preliminary checklist of Missouri’s Jassoidea insects, complete with notes on each species.

Each paper balances meticulous description with accessible language, making the volume an engaging listening experience for anyone curious about the natural world, historical scientific methods, or the early foundations of today’s disciplines.