As the commotion seemed to grow worse instead of subsiding, Spinoza consigned the manuscript once more to his desk, from which it was not to issue till after his death.
At the beginning of his reign the religious fervour which had sustained the Almoravide dynasty was rapidly subsiding; in Portugal independent Moorish chiefs ruled over cities and petty states, ignoring the central government; in Africa the Almohades were destroying the remnants of the Almoravide power.
Except in the river valleys it is a poor territory, rough and mountainous towards the south, but subsiding into undulating wastes and pasture-lands towards the Turkman desert, and the Oxus riverain which is highly cultivated.
Most of the streams maintain a good flow of water in the driest seasons, and in case of heavy rains many of them " underflow " the adjacent bottom lands, saturating the permeable substratum of the country with the surplus water, which in time drains out and feeds the subsiding streams. This feature is particularly true of the Saline, Solomon and Smoky Hill rivers.
In the south the deposits, from the Trias to the middle Eocene, consist mainly of limestones, and were laid down, with a few slight interruptions, upon a quietly subsiding sea-floor.