Although inventors are still prolific in the Patent Office and clubs numerous, the general public takes very slight intelligent interest in aviation. The majority of clubs are inactive. In the year 1912 commercial development seemed to have great possibilities. The copyists were being weeded out and competent aeronautical constructors financed by adequate means began operations on systematic business lines. The latter half of the year saw a great slump. In the spring of 1913 prospects looked greatly improved, and there was generally increased activity. ~Aerial Journals:~-- ~Aeronautics.~--122, East 25th Street, New York. Monthly. ~Aircraft.~--37, East 28th Street, New York. Monthly. ~Fly.~--1701, Chestnut, Philadelphia, Pa. Monthly. ~Aero.~--Chicago, Ills. Weekly. ~Flying Grounds:~-- ~Belmont Park, N.Y.~--Old race track. Not very good. Scene of 1910 meet. 30 sheds occupied by few experimenters. ~Dayton.~--_Wright_ school private field. ~Chicago, Ills.~--Two fine fields. ~Fort Myer, Va.~--Government and private sheds. ~Hammondsport, N.Y.~--_Curtiss_ factory. Field (small) and lake for water planes. ~Los Angeles, Calif.~--Several fields in vicinity. Used for _Eaton_ school and private flyers. ~Marblehead, Mass.~--Poor field. Home of Burgess C. Fine for hydro-aeroplanes. ~Mineola, N.Y.~--_Moisant, Sloane_ and another school, and individuals. About 1 by 10 miles level field, without obstructions. ~Oakwood Heights, Staten I., N.Y.~--The Aeronautical Soc. grounds, on bay for use of hydro-aeroplanes. ~San Diego, Calif.~--Winter quarters _Curtiss_ camp; also used by army flyers. ~San Francisco~ (near).--Good. ~St. Louis, Mo.~--Kinloch Park. _Benoist_ school and private owners. ~U. S. A. AERO CLUBS.~ An attempt has been made here to give the name of every aero club that has been formed recently in the United States, or has been in existence for a long time. It is believed this list covers every club in the United States. Many of these clubs are nothing but a name. They were formed to conduct meets or exhibitions, given by the various aeroplane concerns engaged in this business. Many clubs are not incorporated. Others have no organisation, being run by principals of boys' schools or classes. Clubs even affiliated with the Aero Club of America have no members' meetings, nor have they in many cases even meeting rooms. There are but a half-dozen live aero clubs worthy the name in America. Three clubs own balloons, which are rented to members for ascensions. Little attempt is made by more than one or two associations to popularise aeronautics, to encourage experimenters, or to indulge in scientific work.