author
A teacher and textbook writer from the early 20th century, he focused on making clear thinking practical for students and teachers alike. His work connects logic, arithmetic, and everyday conduct with a direct, classroom-minded style.

by George Hastings McNair
George Hastings McNair was an American educator and author born in 1868. Surviving catalog and ebook records link him to works including A Class Room Logic (1914), Methods of Teaching Modern Day Arithmetic, and Timely Lessons on Today's Living (1922).
The strongest biographical detail available from his books is his professional role: the title page of A Class Room Logic identifies him as "Head of Department of Logic and Mathematics" at the City Training School for Teachers in Jamaica, New York City. That fits the practical tone of his writing, which aims to explain reasoning in a way that would help both teachers and students.
McNair's books suggest a writer deeply interested in education as a tool for better judgment and citizenship. Rather than treating logic as an abstract subject, he presented it as something useful in the classroom and in daily life, giving his work a thoughtful, accessible quality that still feels distinctive.