Note 2 — Chapter IX · 1889–1890. KEELY SUPPORTED BY DISTINGUISHED MEN OF SCIENCE. AERIAL NAVIGATION.
Reading edition
From the Evening Telegraph, Philadelphia, April 13th, 1890: headed “Professor Leidy’s Adherence to the New Force.” ↑
Reading edition
From the Evening Telegraph, Philadelphia, April 13th, 1890: headed “Professor Leidy’s Adherence to the New Force.” ↑