In a letter dated St. Petersburg, the 15th of March last, which I have received from Prince Alexander Labanoff, the accomplished editor of the “Correspondence of Queen Mary of Scots,” he expresses anxiety to ascertain the opinion of the best English antiquaries respecting the alleged residence of that princess at Hardwick Hall, now, as is well known, the property of the Duke of Devonshire. He states, that in 1839 some doubts were expressed to him by le savant Dr. Hunter, meaning, I conclude, our esteemed brother-member of the Society of Antiquaries the Rev. Joseph Hunter, whether in reality Queen Mary had ever been at Hardwick. At the time when those doubts were expressed to him, Prince Labanoff did not concur in them; but, on a further comparison of dates and consideration of circumstances, he has become convinced that those doubts are perfectly well founded. “After long research,” says he, “I am bound to acknowledge that no trace exists of any visit of Mary Stuart to Hardwick Hall; on the contrary, her correspondence appears to prove that she never was at that place.”