WORLDS IN COLLISION BY IMMANUEL VELIKOVSKY AND PUBLISHED BY  THE MACMILLAN COMPANY IN 1950 FIRST PRINTING OF THE FIRST EDITION IN DUST JACKET WITH ORIGINAL PRICE OF $4.50 NOT CLIPPED. SCARCE BOOK ON THE THEORY OF COLLIDING PLANETS OF THE SOLAR SYSTEM. SCARCE!   BOOK IS IN  GOOD TO  VERY GOOD CONDITION WITH OLD TAPE GHOSTS ON THE ENDPAPERS, NAME AND INSCRIPTION ON FRONT FREE ENDPAPER, SHELF WEAR.  DUST JACKET IS IN GOOD CONDITION BUT WITH TAPE ON EDGES AND REVERSE, EDGE AND SPINE TEARS/CHIPS,    POSTAGE $12.50 IN THE UNITED STATES AND BY ARRANGEMENT OVERSEAS.   PAYMENT CAN BE MADE BY PAYPAL........    GOOD LUCK!