"I am tendering you herewith my resignation as chairman of our finance committee, as a member thereof and as a member of the executive committee. . . . ". . . It is desirable for the public to know, as everybody in General Motors should appreciate, that the corporation is not, and in the nature of things cannot be, in politics. . . .
"Sincerely yours, "John J. Raskob."
"I beg to acknowledge receipt of yours of July 23rd. ......