After several sessions of attendance at college, Paul became tutor to a family in Argyleshire, and Campbell obtained a similar situation in the island of Mull. They entered into a humorous correspondence in prose and verse. "Your verses on the Unfortunate Lady," writes Campbell to his friend, "I read with sweet pleasure; for there is a joy in grief, when peace dwelleth in the breast of the sad.... Morose as I am in judging of poetry, I could find nothing inelegant in the whole piece. I hope you will in your next (since you are such a master of the plaintive) send me some verses consolatory to a hermit; for my sequestered situation sometimes stamps a firm belief on my mind that I am actually an anchorite. In return for your welcome poetical effusion, I have nothing at present but a chorus of the Jepthes of Buchanan, written soon after my arrival in Mull:—
"Glassy Jordan, smooth meandering
Jacob's grassy meads between,
Lo! thy waters, gently wandering,
Lave thy valleys rich and green.
"When the winter, keenly show'ring,
Strips fair Salem's holy shade,
Then thy current, broader flowing,
Lingers 'mid the leafless glade.
"When, O! when shall light returning
Gild the melancholy gloom,
And the golden star of morning
Jordan's solemn vault illume?
"When shall Freedom's holy charmer
Cheer my long benighted soul?
When shall Israel, proud in armour,
Burst the tyrant's base control?" &c.
"The similarity of the measure with that of your last made me think of sending you this piece. I am much hurried at present with my comedy, the 'Clouds of Aristophanes.' I have already finished my translation of the Choephorœ of Æschylus. I dreamt a dream about your being before Parnassus upon your trial for sedition and contumacy. I thought Thalia, Clio, &c. addressed you. Their speeches shall be nonsensified into rhyme, and shall be part of some other scrawl from your affectionate friend,
"Thomas the Hermit."
In another epistle Campbell threatens to "send a formal message to the kind nymphs of Parnassus, telling them that, whereas Hamilton Paul, their favourite and admired laureate of the north, has been heard to express his admiration of certain nymphs in a certain place; and that the said Hamilton Paul has ungratefully and feloniously neglected to speak with due reverence of the ladies of Helicon; that said Hamilton Paul shall be deprived of all aid in future from these goddesses, and be sent to draw his inspiration from the dry fountain of earthly beauty; and that, furthermore, all the favours taken from the said Hamilton Paul shall accrue to the informer and petitioner!"
After two years' residence in the Highlands, both the poets returned to Glasgow to resume their academical studies: Campbell to qualify himself as a man of letters, and Paul to prepare for the ministry of the Scottish Church. "It would have been impossible, even during the last years of their college life," writes Mr Deans,[72] "to have predicted which of the two students would ultimately arrive at the greatest eminence. They were both excellent classical scholars; they were both ingenious poets; and Campbell does not appear to have surpassed his companion either in his original pieces or his translations; they both exhibited great versatility of talent; they were both playful and witty; and seem to have been possessed of great facilities in sport. During his latter years, when detailing the history of those joyous days, Mr Paul dwelt on them with peculiar delight, and seemed animated with youthful emotion when recalling the curious frolics and innocent and singular adventures in which Campbell and he had performed a principal part."
While resident at Inverary, Mr Paul composed several poems, which were much approved by his correspondent. Among these, a ballad entitled "The Maid of Inverary," in honour of Lady Charlotte Campbell, afterwards Lady Bury, was set to music, and made the subject of elaborate criticism. On his return to the university, he composed with redoubled ardour, contributing verses on every variety of topic to the newspapers and periodicals. Several of his pieces, attracting the notice of some of the professors, received their warm commendation.