Ferris, Richard. [from old catalog] · New York, T. Nelson and sons · leaf 16
nguage. It seems requisite, therefore, first to ac-quaint the reader with clear definitions of the morecommon terms that are used throughout this book. Aeronautics is the word employed to designate theentire subject of aerial navigation. An aeronaut isa person who sails, or commands, any form of… … i A free balloon, with parachute. Both aviators and aeronauts are often calledpilots, A balloon is essentially an envelope or bag filled 16 INTRODUCTORY, with some gaseous substance which is lighter, bulkfor bulk, than the air at the surface of the earth, andwhich serves to float the apparatus in…
Aeronautics
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
