It is here also that Dante informs his old friend Forese Donati and other spirits, who are all astonished at the sight of his shadow, that he is a living man who was rescued by Virgil some days ago, when the sister of the sun was round (referring of course to the full moon in the forest), and he points to the sun. Now a curious question arises: Dante was in sunshine in the early morning; he is in sunshine now, and has been walking all morning in the same direction in which the sun was moving; how is it then that Statius did not notice his shadow, but had to be told that he was not a spirit?[479] If the Mountain had been a small hill, it would have been quite easy to walk so large a part of a circle round it, in a short time, that the poets would have been in shadow until the sun caught them up again when they lingered talking on the Sixth Cornice; but the Mountain was so large that a whole day’s walking only brought them a quarter of the way round, _i.e._ from the east side to the north, and it was evidently a distance of many miles.[480] It is difficult to believe that Dante has forgotten, because he is so careful throughout to mention the surprise of the spirits except when his shadow could not be seen for one reason or another. It is true that in the latitude of Purgatory (32° south, as that of Jerusalem is 32° north), the sun rises rather steeply, which makes it easier to get into the shade in the early morning while circling a mountain.[481] On the other hand a simpler solution offers itself in the text. Statius approaches Dante and Virgil from behind, and they only stop and turn their faces to him for a few moments while Virgil returns his greeting, then walk on quickly while Statius makes his surprised reply: “What! if you are spirits....” If he has not yet quite overtaken them he cannot see Dante’s shadow, which Dante himself is screening from view as it falls in front of him, the morning sun being still at his back, and Virgil explains at once that his companion is a living man. ------------------------------------------------------------------------ [479] _Purg._ xxi. 20-27. [480] _Purg._ xiii. 22-23. [481] On an Astronomical Point in Dante’s _Purgatorio_, by P. H. Cowell, F.R.A.S., _The Observatory_, December 1906. ------------------------------------------------------------------------