The system of using lime in agriculture does not date further back in this district than the early part, or perhaps than the middle, of the last century; and it is supposed at the least to have doubled the value of all the land, and in consequence to have increased the population, improved the country, and largely added to all the sources of honest industry and employment. Wotton, as a seat of the Courtenays, must have been in former times a place of some consequence. It belonged to the family of Blake, the heiress of which family has married Francis Dogherty, Esq. ST. ERNEY. The little parish of St. Erney, being in fact a part of Landrake, except that its church still exists as a chapel supported by a local rate, is not noticed by Mr. Hals under the letter E, and his account of it is therefore lost, with this part of his manuscript. TONKIN. St. Erney, St. Erna, or St. Erne, stands in the hundred of East, and hath upon the north Landrake, upon the south St. Germans Creek, upon the west St. Germans, upon the east Botus-Fleming. San Erna in the Cernawish tongue signifies holy hour, with reference to, I apprehend, the time set apart for the celebration of divine service. In the Saxon and Kernawish combined, San Erna is an holy or sacred eagle; and if so, I take it, the name must be construed as relating to the person that officiates at divine service, who, as an eagle, ascends up to heaven for metaphysical or supernatural mysteries――as St. John the Evangelist, whose similitude is an eagle. In this sense we have Eagle vicarage in Graffo hundred, Lincolnshire. This is a daughter church to Landrake. THE EDITOR. Mr. Lysons notices the manor of Trelugan, of which Wotton in Landrake seems to be the barton; and also the manor of Markwell, which he says belonged to Thomas Earl of Lancaster, attainted in the reign of Edward II. Then to the Bodrugans, and after the attaint of Henry de Bodrugan, in the reign of Henry VII. it was granted to Sir John Paulet, and descended to the late Duke of Bolton. Mr. Lysons states, that this being a daughter church to Landrake, is entitled to service but once a month; it is probably entitled once in three weeks, which is the general custom or canon. Landrake measures 2217 } statute acres. St. Erney 881 } ---- 3098 Annual value of the Real Property in both £. _s._ _d._ parishes, as returned to Parliament in 1815 5818 0 0 Poor Rate in both parishes 1831 459 2 0 Population of } in 1801, | in 1811, | in 1821, | in 1831, both parishes. } 613 | 768 | 841 | 872 giving an increase of 42 per cent. in 30 years. Rector of Landrake, the Rev. Wymond Cory, presented in 1802 by the Countess of Mount Edgecombe; of St. Erney, the Rev. H. Molesworth, presented in 1823 by Lord de Dunstanville. GEOLOGY, BY DOCTOR BOASE.