Gray, Henry L.2018-02-072018-02-071962-05-08REI-007-14-003http://hdl.handle.net/20.500.11867/5411Single 9 x 11.5 inch letterhead. Typed. Inscribed."I am doing a special article on the Columbia Power System - but it is so statistical that I doubt if I can sell it. As I am limited to 5,000 words, I do not have space in which to quote authorities, but I will keep your letter for reference."No Known Copyright The organization that has made the Item available reasonably believes that the Item is not restricted by copyright or related rights, but a conclusive determination could not be made. Please refer to the organization that has made the Item available for more information. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use.