1850, Howe visited the Holy Land, and endorsed the view that the Church of the Holy Sepulchre could not be the true site of Christ's death and resurrection. Instead, he pointed to the hill containing Jeremiah's Grotto as the true Calvary, though he had only argued this view in length in an essay published in 1871, just after his death. In that essay Howe described the hill in these terms: "[The] hill is left steeply rounded on its west, north, and east sides forming the back and sides of the kranion, or skull. The skull-like front, or face, on the south side is formed by the deep perpendicular cutting and removal of the ledge. To the observer, at a distance, the eyeless socket of the skull would be suggested at once by the yawning cavern, hewn within its face, beneath the hill." Howe claimed that he developed his theory completely independently of Otto Thenius, and that he stumbled upon Thenius' claims only in the course of researching for his essay. H. B. Tristram Another early proponent of the theory that Skull Hill is Golgotha was the English scholar and clergyman Canon Henry Baker Tristram, who suggested that identification in 1858 during his first visit to the Holy Land, chiefly because of its proximity to the northern gate, and hence also to the Antonia Fortress, the traditional site of Christ's trial. (Canon Tristram was also one of the advocates of purchasing the nearby Garden Tomb in 1893.) Claude R. Conder Another prominent proponent of the "new Calvary" was Claude R. Conder, a lieutenant in the Royal Engineers, who was appointed in 1872 by the Palestine Exploration Fund to conduct a mapping survey of Western Palestine. Conder was repulsed by the Church of the Holy Sepulchre, and especially by the annual "miracle of the Holy Fire", as believed in by Greek Orthodox, Armenian Apostolical and Coptic Christians. Based on topographical and textual considerations, Conder argued that it would be dangerous and unlikely, from a town-defense point of view, for the walls to have previously been east of the Church of the Holy Sepulchre, concluding that the Church would have been inside the city walls and thus not the authentic tomb of Christ. He instead proposed that the true Calvary was the "rounded knoll" above Jeremiah's Grotto (i.e. Skull Hill). He based this identification on several arguments. First of all, since the Gospel