The ancients have early described this animal; we see him in some of the first medals of the Cyrenaicum, sitting under an umbellated plant, supposed to be the silphium, whose figure is preserved to us on the silver medals of Cyrene. The high price set upon it is mentioned by several historians, but the reason of that value, or the use of the plant, I have never yet been able to comprehend. I suppose it was an adventitious plant, which the curiosity and correspondence of the princes of that state had probably brought from some part of Negroland, where the goats are brousing upon it at this day with indifference enough, unconscious of the price it bore in the time of the Ptolemies. Herodotus[50], Theophrastus[51], and Aristotle[52], all mention this animal under the name of διπους, γαλαι διποδες or, two-footed rats. This animal is found in most of the parts of Arabia and Syria, in every part of the southern deserts of Africa, but no where so frequently, and in such numbers, as in the Cyrenaicum, or Pentapolis. In my unfortunate journey there, I employed the Arabs, together with my servants, to kill a number with sticks, so as that the skins might not be injured by shot. I got them dressed in Syria and in Greece, and sewed together, making use of the tail as in ermine for the lining of a cloak, and they had a very good effect; the longer they wore, the glossier and finer appearance the skins made. The Jerboa is very fat and well-coloured; the buttocks, thighs, and part of the back, are roasted and ate by the Arabs. I have eaten them; they are not distinguishable from a young rabbit either in colour or taste; they have not even the strong taste the rabbit has. Some writers have confounded these two animals together; at least they have mistaken this for the saphan, and the saphan for the rabbit. This, however, is plainly without foundation. These long legs, and the necessity of leaping, demand the plain ground, where nature has always placed this creature.