"You can see in a moment that, if I have to write to all the scattered proprietors of the Telegraph every time any movement is made, what a burden falls upon me both of expense of time and money which I cannot afford. In acting for my own interest in this matter I, of course, act for the interest of all. If we can get that thirty thousand dollars bill through Congress, the experiment (if it can any longer be called such) can then be tried on such a scale as to insure its success. "You ask permission to make a Telegraph for your own use. I have no objection, but, before you commence one, you had better see me and the improvements which I have made, and I can suggest a few more, rather of an ornamental character, and some economical arrangements which may be of use to you. "I thank you for your kind invitation, and, when I come to Philadelphia, shall _A. Vail_ myself of your politeness. I suppose by this time you have a brood of chickens around you. Well, go on and prosper. As for me, I am not well; am much depressed at times, and have many cares, anxieties, and disappointments, in which I am aware I am not alone. But all will work for the best if we only look through the cloud and see a kind Parent directing all. This reflection alone cheers me and gives me renewed strength." Conditions remained practically unchanged during the early part of the year 1842. If it had not been for occasional bits of encouragement from different quarters the inventor would probably have yielded to the temptation to abandon all and depend on his brush again for a living. Perhaps the ray of greatest encouragement which lightened the gloom of this depressing period was the following letter from Professor Henry, dated February 24, 1842:-- MY DEAR SIR--I am pleased to learn that you have again petitioned Congress in reference to your telegraph, and I most sincerely hope you will succeed in convincing our representatives of the importance of the invention. In this you may, perhaps, find some difficulty, since, in the minds of many, the electro-magnetic telegraph is associated with the various chimerical projects constantly presented to the public, and particularly with the schemes so popular a year or two ago for the application of electricity as a moving power in the arts. I have asserted, from the first, that all attempts of this kind are premature and made without a proper knowledge of scientific principles. The case is, however, entirely different in regard to the electro-magnetic telegraph. Science is now fully ripe for this application, and I have not the least doubt, if proper means be afforded, of the perfect success of the invention.