PRESIDENT ROOSEVELT GREETS PRIME MINISTER MacDONALD AT WHITE HOUSE. PRIME MINISTER RAMSAY MacDONALD, OF GREAT BRITAIN, AND HIS DAUGHTER ISHBEL WERE GIVEN A WARM WELCOME BY PRESIDENT AND MRS. ROOSEVELT WHEN THEY ARRIVED AT THE WHITE HOUSE TODAY. WHILE IN WASHINGTON THE BRITISH STATESMAN WILL STUDY THE SHIFTING SCENE OF WORLD ECONOMICS WITH PRESIDENT ROOSEVELT. IN THE PHOTOGRAPH, L TO R: MRS. ROOSEVELT; MISS ISHBEL MacDONALD; PRIME MINISTER MacDONALD; PRESIDENT ROOSEVELT; AND CAPT. WALTER VERNOU, WHITE HOUSE NAVAL AIDE