 He remained until 1840; the dedication of his pamphlet "Vindication of Van Diemen's Land" is dated 18 February 1840, and in 1841 he brought out another pamphlet, "The Chivalry of the Mercantile Marine", published at Plymouth.He contributed a serial in the Colonial Magazine of 1840-1841, "Van Diemen's Land", which has been reprinted in book form in 1973 as "A Picture of Van Diemen's Land".Burn published a pamphlet "Vindication of Van Diemen's Land in A Cursory Glance at Her Colonists as They Are, Not as They Have Been Represented To Be" (London, 1840).