Purchase one of 1st World Library's Classic Books and help support our free internet library of downloadable eBooks. Visit us online at www.1stWorldLibrary.ORG - - "Tom, I don't believe it can be done!" "But, Dad, I'm sure it can!" Tom Swift looked over at his father, who was seated in an easy chair in the library. The elderly gentleman - his hair was quite white now - slowly shook his head, as he murmured again: "It can't be done, Tom! It can't be done! I admit that you've made a lot of wonderful things - things I never dreamed of - but this is too much. To transmit pictures over a telephone wire, so that persons cannot only see to whom they are talking, as well as hear them - well, to be frank with you, Tom, I should be sorry to see you waste your time trying to invent such a thing."