From a quarter century of prospecting, with his brother Bob, the author writes first hand, locally gathered, tales of Northern mining. Emphasizing the rise and growth of the industry, this is the human side of the picture. ""Meet the boys"" -- mine makers, prospectors, engineers whose efforts brought out the Noranda, the Hollinger, the Flin Flon, the Yellowknife and other-mines, the promoters and financiers who backed the plays. There are the factual notes on Canadian mineral potentials, on the frontiers, science, the search for ore, individual enterprise encouraged by the government. With the revival of Big Bonanza (Knopf -- P. 114), this fills a very masculine place in its virile history of personal, business and adventure material.