The even tone has two variations differing from each other only in pitch; the oblique tone has three variations, known as "Rising, Sinking, and Entering." In a seven-syllable verse the odd syllables can have any tone; as regards the even syllables, when the second syllable is even, then the fourth
is oblique, and the sixth even.
Nay, I despair not that, even here, in this region of Three Dimensions, your Lordship's art may make the Fourth
Dimension visible to me; just as in the Land of Two Dimensions my Teacher's skill would fain have opened the eyes of his blind servant to the invisible presence of a Third Dimension, though I saw it not.
de Busigny, the dragoon, the Swiss, and the fourth
But at that time let me have a shady rock and wine of Biblis, a clot of curds and milk of drained goats with the flesh of an heifer fed in the woods, that has never calved, and of firstling kids; then also let me drink bright wine, sitting in the shade, when my heart is satisfied with food, and so, turning my head to face the fresh Zephyr, from the everflowing spring which pours down unfouled thrice pour an offering of water, but make a fourth
libation of wine.
According to the narrative of the German doctor, Ferdinand Werne, the expedition attempted in 1840, under the auspices of Mehemet Ali, stopped at Gondokoro, between the fourth
and fifth parallels of north latitude.