And Robertson, comparing his prose with his verse, thought the former the more extraordinary of the two. In the popular view of his genius there is, however, no denying the fact that his poetry has eclipsed his prose.

His prose consists mostly of letters, but it also includes a noble fragment of autobiography; three journals of observations made at Mossgiel, Edinburgh, and Ellisland respectively; two itineraries, the one of his border tour, the other of his tour in the Highlands; and historical notes to two collections of Scottish songs. A full enumeration of his prose productions would take account also of his masonic minutes, his inscriptions, a rather curious business paper drawn up by the poet-exciseman in prosecution of a smuggler, and of course his various prefaces, notably the dedication of his poems to the members of the Caledonian Hunt.

His letters, however, far exceed the sum of his other-prose writings. Close upon five hundred and forty have already been published. These are not all the letters he ever wrote. Where, for example, is the literary correspondence in which he engaged so enthusiastically with his Kirkoswald schoolfellows? “Though I had not three farthings’ worth of business in the world, yet every post brought me as many letters as if I had been a broad-plodding son of daybook and ledger.” Where are the letters which brought to the ploughman at Lochlie such a constant and copious stream of replies? The circumstances of his position will explain why they perished: he was then “a youth and all unknown to fame.” It is even doubtful if the five hundred and forty published letters include all the letters of Burns that now exist. Scarcely a year passes but some epistolary scrap in the well-known handwriting is unearthed and ceremoniously added to the previous sum total, And yet, notwithstanding losses past or within recall, it is probable that we have long had the whole of Burns’s most characteristic letters. It was inevitable that these should be preserved and published. His fame was so rooted in the popular regard in his lifetime, that a characteristic letter from his hand was sure to be received as something singularly precious. It must not be forgotten, however, that Burns’s personality was so intense as to colour the smallest fragment of his correspondence, and it is on this account desirable that every note he penned that yet remains unpublished should be produced. It might give no new feature to our conception of his character; but it would help the shading — which, in the portraiture of any person, must chiefly be furnished by the minor and more commonplace actions of his everyday life.

The correspondence of Burns, as we have it, commences, presumably, near the close of his twenty-second year, and extends to all but exactly the middle of his thirty-eighth. The dates are a day somewhere at the end of 1780, and Monday, 18th July 1796. Between these limits lies the printed correspondence of sixteen years. The sum total of this correspondence allows about thirty-four letters to each year, but the actual distribution is very unequal, ranging from the minimum, in 1782, of one, a masonic letter addressed to Sir John Whitefoord of Ballochmyle, to the maximum number of ninety-two, in 1788, the great year of the Clarinda episode. It is in 1786, the year of the publication of his first volume at Kilmarnock, the year of his literary birth, that his correspondence first becomes heavy. It rises at a leap from two letters in the preceding year to as many as forty-four. The phenomenal increase is partly explained by the success of his poems. He became a man that was worth the knowing, whose correspondence was worth preserving. The six years of his published correspondence previous to the discovery of his genius in 1786 are represented by only fourteen letters in all. But in those years his letters, though both numerous and prized above the common, were not considered as likely to be of future interest, and were therefore suffered to live or die as chance might determine. They mostly perished, the recipients thinking it hardly worth their while to be sae nice wi’ Robin as to preserve them.

After the recognition of his power in 1786, the record of his preserved letters shews, for the ten years of his literary life, several fluctuations which admit of easy explanation. Commencing with 1787, the numbers are: — 78, 92, 54, 33, 44, 31, 66, 30, 27, 24. The first of these years was totally severed from rural occupations, or business of any kind, if we except the publication of the first Edinburgh edition of his poems. It was a complete holiday year to him. He was either resident in Edinburgh, studying men and manners, or touring about the country, visiting those places which history, song, or scenery had made famous. Wherever he was, his fame brought him the acquaintance of a great many new people. His leisure and the novelty of his situation afforded him both opportunity and subject for an extensive correspondence. For a large part of the next year, 1788, he was similarly circumstanced, and the number of his letters was exceptionally increased by his entanglement with Mrs. M’Lehose. To her alone, in less than three months of this year, he wrote at least thirty-six letters, — considerably over one-third of the entire epistolary produce of the year.