Lines attributed to Henry Viscount Palmerston

Having been absent for some time, I have not been able to see whether any one has answered a Query I put, viz:— "Who was the author of those lines beginning with— 'Stranger! whoe'er thou art that views this tomb,' etc. which Porson translated into Greek Iambics, beginning with— Ω ξεινε, τουτον ‛οστις εισορας ταφον etc." A friend, who was senior medallist in his time at Cambridge, tells me that tradition said that the lines were set by the Rev. R. Collier, Hebrew Professor and Examiner at Trinity College; and that it is supposed that Collier found them in some magazine of the day. With referenc…