Road surface layers of smaller stones, until the road surface was composed of small stones compacted into a hard, durable surface. "Road metal" later became the name of stone chippings mixed with tar to form the road surfacing material tarmac. A road of such material is called a "metalled road" in Britain, a "paved road" in Canada and the US, or a "sealed road" in parts of Canada, Australia and New Zealand. A granular surface can be used with a traffic volume where the annual average daily traffic is 1,200 vehicles per day or less. There is some structural strength if the
The End of the Road of the Road" in 1958; it received only marginally more attention than "The Floating Opera". A revised edition in 1967 restored material cut from the first edition, and had a new introduction by Barth. Anchor Books collected these two novels in a single-volume edition in 1988; in his foreword to it Barth states he originally titled the book "What To Do Until the Doctor Comes", but Doubleday editor Edward Aswell persuaded him to change it, as he "feared the novel would be mistaken for a treatise on first aid". The story narrates the first-person confession Jacob Horner in the form