April 18, 1848. Instructions for operating the Michigan lines. April 29, 1848. Wire from H.B. Ely to E.B. Cornell: "Three times now have the wires of the Line of the Buffalo and Erie come in contact with those of the Lake Erie Line so as to prevent ours working. I have therefore to request you immediately to remove your line wherever it runs either above or below ours."Topics: Telegraph business correspondence: finances, construction of lines, western lines, materials and supplies, stock subscriptions, disputes concerning western lines and conflict with O'Reilly, disputes concerning Canadian lines; Montreal Telegraph Company.; British North American Electric Telegraph Association. Personal names: Speed, J.J.; Haviland, J.; Rice, H.F.; Cornell, E.B.; Cornell, Alonzo B.; Howland, Charles W.; Allen, W.D.; Humphrey, William R.; Kendall, Amos; Hale, Henry; Ely, H.B.; Bent, George. Geography: Montreal; Vermont; Troy; Detroit; Jefferson (Watkins Glen), N.Y.; Havana (Montour Falls), N.Y.