Scope and Contents Letter to brother: “My dear Edward, I return the papers at once with my signature duly apprehended. I am very much obliged to you, both for explaining the matter to me sufficiently and for not explaining it too much at the risk of addling my head with details. I always feel conscious of an incipient softening of the brain when anybody attempts to make me follow a calculation of any kind. Bertie rather self-complacently asked me the other day what I thought of rule-of-three. I could only...