The outer portion (1.5mm to 5mm) of the cerebrum is covered by a thin layer of gray tissue called the cerebral cortex. 1  The cerebral cortex is in turn divided into four lobes: frontal lobes, parietal lobes, temporal lobes, and occipital lobes. The cerebrum or telencephalon, along with the diencephalon comprise the two major divisions of prosencephalon (forebrain).
Gemstones from Africa. The traditional sources for colored gemstones are in Asia and South America, especially Burma, Sri Lanka and Brazil. However, these days Africa is generating most of the the excitement in the gemstone world.Looking at our own inventory of over 35,000 gems, about 50% of them originate from Africa.owever, these days Africa is generating most of the the excitement in the gemstone world. Looking at our own inventory of over 35,000 gems, about 50% of them originate from Africa.
The Hebrews obtained their gemstones from the Middle East, India, and Egypt. At the time of the Exodus Egypt was flooded with riches, and the Israelites on leaving the land possessed themselves of many gemstones, according to the commandment of God (Ex., iii, 22; xii, 35-36).