42. Should the Receiving Postmaster find that any of the Letters have been under-rated, that is, not charged with sufficient Postage,--if for example, a Letter weighing an ounce has only been charged with one rate, he will mark the additional Postage with the words "_More to pay_," and his initials on the Letter. * * * * * 44.... Letters are to be postmarked on the back or seal side with the date of the day on which they arrive.... * * * * * 58. On Letters not exceeding 1/2 oz. in weight between any place in Canada and any other place in British North America, including Canada, New Brunswick, Nova Scotia, Prince Edward Island, and Cape Breton, the rate is a uniform charge of 3d. For every additional weight of half an oz., or any fractional excess of half an oz., there shall be charged an additional rate of 3d. 59. On Letters deposited at an Office for delivery in the same place, called Drop or Box Letters, the rate is One half-penny each, to be brought to account by Postmasters. 60. On Letters between any place in Canada and any part of Great Britain or Ireland, if conveyed in the Weekly closed Mails through the United States, the rate is a uniform charge of 1s. 2d. sterling, equal to 1s. 4d. currency, on a Letter not exceeding 1/2 oz., in weight. * * * * * 62. On Letters between Canada and the United Kingdom, conveyed by the semi-monthly Mails by way of Quebec, New Brunswick and Halifax, the rate is: On Letters not exceeding 1/2 oz., 1s. 0d. sterling equal to 1s. 1-1/2d. currency. On Letters not exceeding 1 oz., 2s. 0d. sterling equal to 2s. 3d. currency. On Letters not exceeding 2 oz., 4s. 0d. sterling equal to 4s. 6d. currency. 63. On Letters between any place in Canada and any part of the United States, except California and Oregon, the rate is a uniform charge of 6d., equal to 10c. per 1/2 oz. weight. 64. On Letters to California and Oregon, the rate is 9d., equal to 15c. per 1/2 oz. * * * * * 67. Letters to Newfoundland may be sent via Quebec and Halifax at a Postage rate of 7-1/2d. per 1/2 oz. 68. Letters to British West Indies via Quebec, Halifax and Bermuda will be charged the Canada rate of 3d. and in addition the Packet rate for sea conveyance between Halifax and Bermuda of 4-1/2d. currency, making on a letter not weighing more than 1/2 oz. a rate of 7-1/2d. 69. Letters may also be sent from Canada to the British West Indies and Havanah by the ordinary United States Mails to New York, and from thence by British Steam Packet to destination, on Prepayment in Canada of 9d. equal to 15c. per 1/2 oz.