In the Northeast, the post road to Edinburgh now passed through York to Northallerton. From York there was a branch to Scarborough and Whitby. A new road left the Edinburgh road at Royston, about forty miles from London, and passed along the coast nearly parallel to the great road, through Newmarket, Lynn, Boston, and Hull to Bridlington. Another branch left Newmarket for Norwich and the seacoast towns of northern Norfolk. An important road left London for Yarmouth, with branches to the coast towns of Suffolk. One new road ran through the midland counties, leaving the Holyhead road about thirty miles from London and passing through Sheffield, Manchester, and Preston to Carlisle. Derby was supplied by an east and west road from Grimsby to Manchester. Liverpool had a post road to Manchester. In 1683, provision was made for an extension of the post roads by an order issued to the Postmaster-General to set up posts between the market towns and the nearest post towns. These were called bye-posts. It was to them that Hicks had objected as leading to increased expense. At the same time orders were given for a map to be printed, showing where all these bye-posts were situated so that people might know where to address their letters.[394] [394] _Rep. Com._, 1844, xiv, app., p. 91 (64). In Ireland, there were three main post roads, running from Dublin through Ulster, Munster, and Connaught.[395] There were practically no post roads worthy of the name in Scotland. That part of the great North Road beyond the Tweed was English rather than Scotch. Between Edinburgh and Glasgow there was a foot-post. The mail was also carried between Glasgow and Portpatrick.[396] In 1699, the length of the roads in America over which the mails passed was 700 miles. These roads connected the principal towns along the Atlantic coast.[397] [395] Joyce, p. 53. [396] _Cal. T. B. & P._, 1739-41, p. 240; _Rep. Com._, 1844, xiv, app., p. 94 (67); _Acts of the Parl. of Scotland_, ix, p. 417 (5 Wm. III). [397] _Cal. T. P._, 1697-1702, p. 280.