These are the shape and motions of the fluid which gives the calcareous concretion.

A calcareous concretion is sometimes found in the centre of the nut, to which peculiar virtues have been attributed.

Below this stratum was clay mixed with calcareous concretions.

Calcareous concretions in the kidneys and bladder, also, come from the same cause, and are called gravel.

The river water was brackish; and in the bank was a bed of calcareous concretions which some of the men supposed to be bones.

I found that there anciently existed several apertures that are now sealed up, either by calcareous concretions or by earthy rubbish from the mountain.