The following notes are the outcome of observations made several years ago. It is hoped that they may arouse the interest of some who will be tempted to pursue the enquiry with more definite results.

Briefly, my observations seem to show that the earthworks and stones in question extending from Harleston to Gorleston are of prehistoric date, perhaps of the same cycle as the stone circles of Stonehenge, Avebury, Stenness, and elsewhere, and, like them, designed, by a series of alignments with outlying monoliths, for solar and stellar observations—in the present case chiefly of the sun's rising and setting at the period of its greatest amplitude, viz., at the summer and winter solstices. Such astronomical considerations have been very fully considered by Sir Norman Lockyer. To his work, “Stonehenge and other British Monuments astronomically considered” (Macmillan, 1906), I am indebted for the clue which led me to the subject of these notes, and to this work I refer the reader for a vast amount of evidence parallel with that which I am now offering.