The gravel mounds and ridges known as Eskers or Kames are, though conspicuous where they do occur from the variability of their outlines, very irregularly distributed in the districts in which they are found. Having been familiar with eskers in Cumberland, I was asked by Mr. H. B. Woodward to visit him at Fakenham this spring for the purpose of seeing whether certain ridges and mounds in the neighbourhood of Glandford and Blakeney were such as are called eskers in the north. And I found that Mr. Whitaker had also met with ridges of doubtful character a little west of Great Massingham. Having just had, accordingly, the advantage of visiting both the localities mentioned, in the company of Messrs. W. Whitaker, H. B. Woodward, and J. H. Blake, this seemed a good opportunity of introducing the subject of eskers to the Norwich Geological Society. The extreme irregularity of their distribution is well illustrated by the fact that not one of the gentlemen named had hitherto met with any esker-like ridges in East Anglia. As eskers are far more numerous and varied in Cumberland than in Norfolk, I will first give some description of those of Cumberland and afterwards refer to the ridges of Norfolk.