CHAP. in. $ 1. INTRODUCTION. 14o the former to the inhabitants of the tropics, and one between the tropics, which is called amphiscius, 1 but for matters re- lative to the earth, it is convenient to suppose two other nar- row zones placed under the tropics, and divided by them into two halves, over which [every year] for the space of a fortnight, the sun is vertical." 2 These zones are remarkable for being exrame_ly arid and sandy, producing noj^egetation with the exception of silphium, 3 and a parched grain somewhat resembling wheat. This is caused by there being jip^moun- tajns to attract the clouds and pn)duce._jcain, nor any rivers flowing 4 through the country. The consequence is that the various species 5 are born with woolly hair, crumpled horns, protrudingjips, and wide nostrilsT their extremities being as it were gnarled. Within these zones also dwell the Ichthyo- phagi. 6 He further remarks, that these peculiarities are quite sufficient to distinguish the zones in question : those which are farther south having a more salubrious atmosphere, and being more fruitful and better supplied with water. CHAPTER III. 1. POLYBIUS supposes six zones: two situated between the poles and the arctic circles ; two between the arctic circles and the tropics ; and two between the tropics which are di- vided by the equator. However, it appears to me that the 1 Having at mid-day in alternate seasons the shadow falling north and south. 2 Viz. Posidonius allowed for each of these small zones a breadth of about 30', or 350 stadia, of 700 to a degree. 3 A plant, the juice of which was used in food and medicine. Bentley supposes it to be the asa-foetida, still much eaten as a relish in the East.
- Posidonius was here mistaken ; witness the Niger, the Senegal, the
Gambia, &c. 5 The expression of Strabo is so concise as to leave it extremely doubt- ful whether or not he meant to include the human race in his statement. Looking at this passage, however, in connexion with another in the 15th Book, we are inclined to answer the question in the affirmative. 8 Or living on fish, a name given by the Greek geographers to various tribes of barbarians ; but it seems most frequently to a people of Gedrosia on the coast of the Arabian Gulf. It is probably to these that Strabo refers. VOL. i. L
