1851, with Overweg, to visit the kingdom of Adamaoua, to the south of the lake, and from there he pushed on as far as the town of Yola, a little below nine degrees north latitude. This was the extreme southern limit reached by that daring traveller.
Ferguson carefully noted the fact, that he had stopped at four degrees north latitude and seventeen degrees west longitude.
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.
In ancient times, the ambassadors of Nero reached the ninth degree of latitude, but in eighteen centuries only from five to six degrees, or from three hundred to three hundred and sixty geographical miles, were gained.
They next made for the first of the great lakes, the one named Tanganayika, situated between the third and eighth degrees of south latitude. They reached it on the 14th of February,
There Burton, who was completely worn out, lay ill for several months, during which time Speke made a push to the northward of more than three hundred miles, going as far as Lake Okeracua, which he came in sight of on the 3d of August; but he could descry only the opening of it at latitude two degrees thirty minutes.
Ferguson carefully remarked that they had not gone beyond the second degree of south latitude, nor the twenty-ninth of east longitude.
It was, therefore, only those portions of Texas and Florida which were situated below this parallel which came within the prescribed conditions of latitude
Two months earlier we should have had perpetual daylight in these latitudes; but already we had had three or four hours of night, and by and by there would be six months of darkness in these circumpolar regions.
A vessel without sails, with electricity for its motive power, and wanting no coal, could alone brave such high latitudes. At length, on the 18th of March, after many useless assaults, the Nautilus was positively blocked.
But I do not doubt that some temperate productions entered and crossed even the lowlands of the tropics at the period when the cold was most intense,--when arctic forms had migrated some twenty-five degrees of latitude from their native country and covered the land at the foot of the Pyrenees.
Watson has recently remarked, 'In receding from polar towards equatorial latitudes, the Alpine or mountain floras really become less and less arctic.' Many of the forms living on the mountains of the warmer regions of the earth and in the southern hemisphere are of doubtful value, being ranked by some naturalists as specifically distinct, by others as varieties; but some are certainly identical, and many, though closely related to northern forms, must be ranked as distinct species.
As the warmth returned, these temperate forms would naturally ascend the higher mountains, being exterminated on the lowlands; those which had not reached the equator, would re-migrate northward or southward towards their former homes; but the forms, chiefly northern, which had crossed the equator, would travel still further from their homes into the more temperate latitudes of the opposite hemisphere.
This mount, situated in 9@ north latitude
and 20@ east longitude, rose to a height of 10,600 feet above the surface of the moon.
She said: "I have been coming to latitude
for nine years now, and the sheep are really well cared for, and always look as content as sheep can.