Recent Researches on Flight*

Abstract

OF late the perplexing problem of flight has received a greater amount of attention from physiologists and savants than has been bestowed upon it for years, ana the result of their researches and experiences is in a fair way ot becoming remurk able for its fruit-bearing character. Whilst abroad, such men as Borelli, Straus- Durckheim, Chabrier, Girard, and Marey, have severally given to the world the gist of their labours in this branch of science; at home, the Duke of Argyll and Dr. J. Bell Pettigrew have awakened our deep interest by their views on natural and artificial flight. To the latter is due the honour of giving birth to the celebrated “figure-of-8 wave theory,”that is now attracting so much notice in our aeronautical schools.