sentences:  Late in his life (from age 91 to 95), he wrote a blog named "Don To Earth", making him Canada's, and one of the world's, oldest bloggers.His brief blogs, which he kept "no longer than a page," were principally meditations on "Instincts of the Herd in Peace and War" by Wilfred Trotter.Said, Crowdis, "this column is for the single purpose of urging my readers to read it.