April 20, 1850. Alonzo B. Cornell to Ezra Cornell: "I am very sorry to hear that you are so strained in your money matters. Though it is not very much to be wondered at considering from whence you expect money." April 1850. Letters from Speed describing possible improvements to telegraph technology, and a method of preventing steam boilers from exploding. Topics: Telegraph business correspondence: materials and supplies, patent disputes, stocks, finances Personal names: Cornell, Alonzo B.; Speed, J.J. Geography: Detroit; Ithaca, N.Y.