It was characteristic of Morse that the first money which he received from the actual sale of his patent rights ($45 for the right to use his patent on a short line from the Post-Office to the National Observatory in Washington) was devoted by him to a religious purpose. From a letter of October 20, 1846, we learn that, adding $5 to this sum, he presented $25 to a Sunday School, and $25 to the fund for repairs. The attachment of the three Morse brothers to each other was intense, and lasted to the end of their lives. The letters of Finley Morse to his brother Sidney, in particular, would alone fill a volume and are of great interest. Most of them have never before been published and I shall quote from them freely in following Morse's career. Sidney and his family were still in Europe, and the two following extracts are from letters to him:-- "_October 29, 1846._ I don't know where this will find you, but, as the steamer Caledonia goes in a day or two, and as I did not write you by the last steamer, I thought I would occupy a few moments (not exactly of leisure) to write you.... Charles has little to do, but does all he can. He is desirous of a farm and I have made up my mind to indulge him.... I shall go up the river in a day or two and look in the vicinity of Po'keepsie.... "Telegraph matters are every day assuming a more and more interesting aspect. All physical and scientific difficulties are vanquished. If conductors are well put up there is nothing more to wish for in the facilities of intercourse. My operators can easily talk with each other as fast as persons usually write, and faster than this would be faster than is necessary. The Canadians are alive on the subject, and lines are projected from Toronto to Montreal, from Montreal to Quebec and to Halifax. Lines are also in contemplation from Toronto to Detroit, on the Canada side, and from Buffalo to Chicago on this side, so that it may not be visionary to say that our first news from England may reach New York via Halifax, Detroit, Buffalo and Albany.... "The papers will inform you of the events of the war. Our people are united on this point so far as to pursue it with vigor to a speedy termination. However John Bull may sneer and endeavor to detract from the valor of our troops, his own annals do not furnish proofs of greater skill and more fearless daring and successful result. The Mexican race is a worn-out race, and God in his Providence is taking this mode to regenerate them. Whatever may be the opinions of some in relation to the justness or unjustness of our quarrel, there ought to be but one opinion among all good men, and that should be that the moment should be improved to throw a light into that darkened nation, and to raise a standard there which, whatever may become of the Stars and Stripes, or Eagle and Prickly Pear, shall be never taken down till all nations have flocked to it. Our Bible and Tract Societies and missionaries ought to be in the wake of our armies."