The rate of postage on letters between any place in Canada and any place in California or Oregon is 15 cents per 1/2 oz., which may be pre-paid or not at the option of the sender. [Sidenote: Scale of weight.] The scale of weight under which the above letters are charged is the same as the scale under which letters passing between places in Canada are rated. [Sidenote: United Kingdom.] The single rate of postage on letters between any place in Canada and any place in the United Kingdom, is as follows:-- [Sidenote: Canadian Steamers.] By Canadian Steamer, sailing every Saturday from Quebec in Summer and from Portland in Winter, 12-1/2 cents. [Sidenote: Cunard Steamers.] By Cunard Steamer, sailing either from New York or Boston every Wednesday, 17 cents. [Sidenote: Scale of weight.] Letters addressed to the United Kingdom and forwarded by either of the above routes, will be charged according to the following scale, which it will be seen differs from the scale of weight under which letters passing between places in Canada are taxed:-- Letters not weighing over 1/2 an oz., 1 rate. " weighing more than 1/2 oz. and not exceed. 1 oz. 2 rates. " " " 1 " " 2 " 4 " " " " 2 " " 3 " 6 " " " " 3 " " 4 " 8 " And so on, adding two rates for every additional ounce or <i>fraction of an ounce</i>. [Sidenote: Pre-payment required.] The postage on all letters posted in Canada for the United Kingdom, and in the United Kingdom for Canada, should be pre-paid. [Sidenote: Unpaid letters.] If sent unpaid 6d. sterling will be charged on each letter on delivery in addition to the ordinary postage rate. [Sidenote: Despatch by Canadian and Cunard Steamers.] Letters posted in Canada for the United Kingdom, and in the United Kingdom for Canada, unless specially addressed "By Canadian Steamer" or "By Cunard Steamer," are despatched in the first mail that is made up--whether for the Canadian or Cunard line--after the letter is posted, so that letters intended for the Canadian Packets must either be posted on the proper days for the Canadian Packet Mails or bear the words "By Canadian Mail Steamer" on the address. Twopence sterling, equal to 5 cents, will be charged on the delivery of letters which have been forwarded as above by Cunard Steamers, but on which 6d. sterling or 12-1/2 cents, only per 1/2 oz. have been pre-paid. [Sidenote: British Colonies and Foreign Countries] The rates upon letters for British Colonies and Foreign Countries will be found in the tables at pages 36, 37, 38, 39, and 40. These tables give the rates: 1, by Canadian Ocean Steamers; 2, by Cunard Steamers; and 3, by United States. It will be desirable always to mark on the letter the route by which it is intended to be sent. The charge on dead letters returned to the writers is 3 cents on each letter in addition to the postage.