Radio age (Jan 1927-Jan 1928)

RADIO AGE for January, 1927 The Magazine of the How 59 POLK'S REFERENCE BOOK FOR DIRECT MAIL AOVERTISER8 Show* Jiow to Increase your business by the use of Direct Mall Advertising, 60 pages full of vital business facts and figures. Who, where and how many prospects you have. Over 8,000 lines of business covered. Write for your FKEE copy. R. L. POLK & CO., Detroit, Mict. 599 POLK DIRECTORY BUILDING i Branches In principal cities of D. S. Purebred Poultry FOR SALE PUREBRED Barron strain White Leg horn pullets ready to lay, $1.25 each. Owens strain Rhode Island Reds pullets ready to lay, $1.40 each. Thompsons strain Barred Rock pullets ready to lay $1.40 each. Brown Leghorn pullets of the everlay strain ready to lay, $1.35 each. Sheppard strain Ancona pullets ready to lay, $1.35 each. Young cock birds ready for service any breed listed above $2 each. Baby chicks, one day old of any breed listed above $11 hundred. All purebred stock. We pay postage charges on all baby chicks, and express charges on pullets in lo'.s of one dozen or more. Lots of less than one dozen pullets, customer pays express. Orders booked now for baby chicks for shipment any date in Winter, Spring or Summer. Must be paid for in full before shipment. FULGHUM HATCHERY Freeburg Illinois To the Man with an Idea I offe a comprehensive, experienced efficient service for bis prompt, legal protection and the development of his proposition. Send sketch of model and description, for advice as to cost, search through prior United States patents, etc. Preliminary advice gladly furnished without charge. My experience and familiarity with various arts frequently enable me to accurately advise clients as to probable patentability before they go to any expense. Booklet of valuable information and form for properly disclosing your idea free on request. Write today. RICHARD B. OWEN, Patent Lawyer 81 Owen Bldg., Washington, D. 41-M Park Row, N. Y. City Atmosphere of Mars Believed Dust-Filled RECENT studies of the planet Mars have led to no recent pronouncements of importance. Several observers report further changes in the appearance of dark or bright areas on the planet's surface but such changes have been observed often before and yield no new information. There has been published in Germany, however, a new paper discussing photographs made of Mars two years ago. Dr. B. G. Fessenkoff, the Russian scientist who made this study, believes the Martian atmosphere to be extremely dusty, probably as much so as the air of a terrestrial desert during a sand storm. This is the most probable explanation, he believes, of the different appearance of the planet as photographed by red light and by violet light. Continual dust storms on Mars probably would not interfere with the existence of life there, although it would make things rather uncomfortable for creatures organized as we are; which the Martians, if they exist at all, probably are not. The two planets reached their closest approach for many years on October 27 and are now slowly drawing apart. Jinks: "Come on in and hear the radio. They're broadcasting a church service." Binks (of Scotch descent) "Have they taken up the collection yet?" MALE HELP Firemen, Brakemen, Baggagemen, (white or colored), sleeping car, train porters (colored), $l50-$250 monthly. Experience unnecessary. 278 Railway Bureau, East St. Louis, III. RADIO'S LEADING PUBLICATIONS The CITIZEN'S RADIO CALL BOOK is Radio's Greatest Publication. Circulation 300,000. Contains all the latest information of construction so simply told anyone can build superheterodynes as easily as laboratory men. Large rotogravure section contains beautiful photos of leading station announcers and entertainers. Also contains the most complete list of the World's broadcasting stations — every one — t heir transmitting schedules, wave lengths, slogan and plenty of space under each to log that station for future reference. Really Radio's Greatest Publication. You'll be delighted. Price only 50 cents postpaid. The CITIZEN'S RADIO AMATEUR CALL BOOK is an international list of call letters, names and addresses of the World's amateur transmitters — ARRL official traffic relay stations list. Com piled from official sources and the mos authentic list obtainable anywhere. Re member, the whole World — U. S., Can ada, England, Australia, France, Ger many, etc. The whole international list Also commercial ship and land stations Price only 75 cents postpaid. If you are unable to obtain either of the above mentioned publications from your news dealer or radio store, they will be sent postpaid upon receipt of the amount in U. S. stamps, coin, check or P. O. money order. Citizens Radio Call Book 508 S. Dearborn St. Chicago Illinois Please Mention Radio Age When Writing to Advertisers.