In 1666, he was involved in the care of plague victims, and began to compose short popular religious treatises.

He was an adept in the use of the microscope, and his popular treatise on it stimulated many to explore this new aid.

Additionally, he wrote and published a number of popular treatises.

The work became the most popular educational treatise of the Late Middle Ages.

Inspired by a popular political treatise by the same name, the story follows main character Jeremy's troubled search for his real father.

He wrote a popular treatise upon the former subject for the Nature Series in 1874.

Mansagari is a popular classical treatise on Hindu predictive astrology.

There, in 1909, Victor wrote a book, Vehicles of the Air, which became a popular treatise on aircraft design and aviation history.

A popular treatise of the common Indian snakes.

By the 12th and 13th centuries, historical works and popular treatises on contemporary science were composed in the vernacular.