II.—On a Deposit of Phosphatic Nodules in the Lower Green-Sand, at Sandy, Bedfordshire

Extract

The Summit of the hill, about two miles form the station, on the property of Arthur Peel, Esq., M.P., consists of yellow and brown sand, with much iron; and the harder beds of the latter, where they form a stone, are composed largely of small pebbles of quartz, sandstone, and mica. In these the phosphatic nodules are found. Generally they lie at a variable depth from the surface—in some cases cropping out; but, in others, they prevail at a greater depth, with a capping of soft sand from three to four feet, but none have been met with below six feet from the top.