In the erection of a new home of rest—St. Monica's, in the grounds of what was formerly Cote House, near the top of Westbury Hill, an interesting section1 of the upper part of the Old Red Sandstone and of the lower Avonian rocks up to the top of Zx was exposed in digging the foundations. Although the section lies only a little over a mile north-east of the Avon section and the general succession of the two is very similar, the Westbury section is of considerable interest, particularly as certain levels were well seen which are not exposed in the Avon section. In all the following tables the strata are described from below upwards.