Horace: Quintus Horatius Flaccus. The letters of Horace presented to modern readers,

Mode of access: Internet.

The letters of an englishman.

Mode of access: Internet.

Correspondence of scientific men of the seventeenth century : including letters of Barrow, Flamsteed, Wallis, and Newton, printed from the originals in the collection of the Right Honourable the Earl of Macclesfield.

Microfilm. Ann Arbor, Mich., University Microfilms [n.d.] (American culture series, Reel 275.3)

The letters of Pliny the consul, with occasional remarks

Mode of access: Internet.

Elements of a polite education : Carefully selected from the letters of the late Right Honorable Philip Dormer Stanhope, earl of Chesterfield, to his son /

Mode of access: Internet.

Letters of Euler on different subjects in natural philosophy : addressed to a German princess /

Mode of access: Internet.

Letters of Lady Rachel Russell : from the manuscript in the library at Woburn Abbey : with an introduction vindicating the character of Lord Russell against Sir John Dalrymple, &c., and the trial of Lord William Russell for high treason.

Mode of access: Internet.

Letters of Isaac Penington : son of Alderman Penington of London, and an eminent minister of the gospel in the Society of Friends, which he joined about the year 1658.

Mode of access: Internet.

The letters of Pliny the Consul /

Mode of access: Internet.

Letters of Thomas Gray. Two volumes in one.

"Chronologically arranged from the Walpole and Mason collections."

The letters of Algernon Sydney, in defence of civil liberty and against the encroachments of military despotism /

Algernon Sydney identified as Benjamin Watkins Leigh in: Initials and pseudonyms / William Cushing. Waltham, Mass. : Mark Press, 1963.

Letters of St. Paul the apostle : written before and after his conversion /

Mode of access: Internet.

Memoirs and letters of Richard and Elizabeth Shackleton, late of Ballitore, Ireland;

Mode of access: Internet.

Letters of the late John Thorp, of Manchester : a minister of the Gospel in the Society of Friends ; to which is prefixed a memoir of the life of the writer.

Mode of access: Internet.

Extracts from the letters of John and Martha Yeardley : whilst on a religious visit to some parts of the continent of Europe, the Ionian Isles, &c.

Mode of access: Internet.