THOMAS-ST, a township, forming that part of the parish of SWANSEA which is in the hundred of LLANGYVELACH, in the
union of SWANSEA, county of GLAMORGAN, SOUTH WALES, half a mile (E.) from Swansea; and containing 683 inhabitants. This
place, which within the last few years has greatly increased in population and importance, is situated on the left bank,
and near the mouth, of the river Tawy, across which there is a ferry to the town of Swansea, on the opposite bank, but
which, during the whole of the interval from two hours before till two hours after the time of low water, is fordable.
Considerable alterations have been made here, under the provisions of an act of parliament for improving the harbour of
Swansea; of which the principal are, the construction of the eastern pier, extending six hundred yards across the mouth of
the Tawy, and inclosing a capacious basin, which at high water has a noble appearance; and the formation of Port Tennant,
the .private property of H. T. Tennant, Esq., by whom it was projected, and at whose sole expense it was completed. This
latter consists of a dock capable of receiving, vessels of two hundred tons' burthen, communicating with the Swansea and
Neath Junction canal, formed byy the same gentleman, which extends hence to the village of Cadoxton, about a mile above
Neath, where it joins the Neath canal, thus providing a Cheap means of conveyance betwed Port Tennant and a large district
abounding with coal and culm, which are brought down the canal and here shipped. The hamlet includes a portion of the
Cremlyn Burrows, an extensive marsh stretching along the coast, and bounded on the south by Swansea bay. It formerly
contained a chapel of ease to the mother church of St. Mary, in Swansea, but, from the encroachment of the sea on this
part of the coast, the site cannot now be distinguished. The seat Tan-y-Graig is pleasantly situated within its limits;
and it is included within the electoral limits of the borough of Swansea, as defined by the act of 1832, to " Amend the
Representation."