you would find it useful to look over the catalogues of our public exhibitions, for such views as might be included in it. It is safe to study scenes chosen by professors, and a stimulus to recollect that they have been drawn. I will send you a list. Your first aim, of course, will be the characteristic features of the country, and then to exercise your taste and judgment in selecting them. Artists, of merit in other respects, sometimes fail in this. With considerable facility and fidelity of pencil, and even skill in colouring, they have little notion of catching the grand peculiarities of a country, or of choosing them judiciously. I have met with such indefatigable fellows, drawing all day long all that came in their way; and this may be good practice, and help to fill the hint book, but it surely neither improves the taste of the artist, nor displays his genius. Be it your care then to study, and bring back with you, such scenes of sublimity and beauty as wear Cambrian features, and are not to be found at home; and to which I very sincerely wish my sketches were a better introduction.

But before we proceed, I will endeavour to explain the principle upon which my stations are determined. This therefore shall be the subject of my next letter.

Yours, &c.

PUBLICATIONS ON WALES.

Churchyard's Worthiness of Wales, 8vo. 1587.
Camden's Britannia, Edit. Gibson, folio, 1696.

Edit. Gough, 3 vols. folio, 1789.

Cambrian Directory, 8vo. 1800.

Cambrian Itinerary, 8vo. 1801.

Cambrian Register, 2 vols. 8vo. 1795 and 1796.

Cambrian Biography, 12mo. 1803.

Collection of Welch Tours, 12mo. 1797.

Collection of Welch Travels, and Memoirs on Wales, by

J. T. 8vo. 1738.

Doddridge's Historical Account of the Principality of Wales, 8vo. 2d Edit. 1714.

Grose's Antiquities of England and Wales, 10 vols. 4to. 1784.

Geographical, Historical, and Religious Account of the

Parish of Aberystwith in Monmouthshire, by Edward Jones, 8vo. 1779.

History of Welch Cathedrals, by Brown Willis, 4 vols. 8vo. 1801.

History of Brecknockshire, by Theophilus Jones, vol. first,

4to. 1805.

History of Wales, by R. B. 12mo. 1695.

Jones's Musical and Poetical Relics of the Welch Bards, folio. 1794.

1802.

Bardic Museum of Primitive British Literature, folio.

Letters from Snowdon, 8vo. 1770.

Myvyrian Archæology of Wales, 2 vols. 8vo. 1802.

Memoirs of Owen Glendower, 4to. 1775.

Manby's History of St. David's, 8vo. 1801.

Owen's History of the Ancient Britons, 8vo.

British Remains.

Powel's History of Cambria, written originally in the British Language, above 200 years past, translated into English, by H. Lloyd; corrected and augmented by D. Powel, D. D. 4to. 1584.

Rowland's Mona Antiqua, 4to. 1776.

Sketch of the History of Caernarvonshire, 12mo. 1792.

Traveller's Companion (from London) through Wales to Holyhead, 12mo. 1796.

Vindication of Ancient British Poems, by Sharon Turner, 8vo. 1804.

Williams's History of Monmouthshire, 4to. 1796.

Wallography, or Briton Described, by W. R. 1682,
Wynne's Memoirs of the Gwydir Family, printed in the
Honourable Daines Barrington's Miscellanies, 4to. 1781.
Warrington's History of Wales, 2 vols. 4to. 1786, another
edition, 2 vols. 8vo.

Williams's Observations on the Snowdon Mountains, 8vo.. 1802.

MODERN TOURS.

Aikin's Journal of a Tour through North Wales, 8vo. 1797.

Barber's Tour through South Wales, 8vo. 1803.

Donovan's Tour through South Wales, 2 vols. 8vo. 1805.

Evans's Tour through North Wales, 8vo. 1800.

South Wales, 8vo. 1804.

Hutton's Remarks on North Wales, 8vo. 1803,

Lipscombe's Tour through South Wales, 8vo. 1802.

Manby's Tour through South Wales, 8vo. 1803. Skrine's Two Tours through the whole of Wales, 8vo. 2d edit. 1812.

Tour through England and Wales, 8vo. 1793. Anon.

Tour through part of South Wales, by a Pedestrian Traveller, 4to. 1797.

Warner's Walk through North Wales, 8vo. 4th edit. 1801.

Warner's Second Walk through Wales, 8vo. 2d edit. 1800.

LETTER II..

To you, who are at the fountain head of mathematical lore, I must not suppose this letter will be formidable. You may, however, make out my stations, without perplexing yourself with the principle upon which they are determined. I expand it rather, as it would enable you, by inspecting any drawing, to discover where the artist stood to make it; and so to take the same view yourself.

4

The principle I have used is, the bearings or relative position of two fixed objects in the view; and that they will determine the station, may be thus demonstrated: