Show I TO CO AID AID MAILS lTD London Jan 29 William Marconi tho Inventor has informed the tho Dally Daily Mall Mail that the tho period for investigating tho sounds cau caught ht on various wireless apparatus will Include April 21 1 when Mars Mars Mars-is Is is nearest the tho earth Ho Ito says sas however that undue stress should not bo be placed on this dato date as a a. few thousand thousand thousand thou thou- sand miles would not mal make likely e an any appreciable difference In recording sig sig- nals |