The Schoolmen had no historical sense and little historical information; hence they fell into one error after another on the essentials in the rite of ordination.
The positive side of his teaching resembles in all essentials that of Arcesilaus (q.v.).
Showing the variation of periods and essentials of o style; and this is followed ft by an account of the use made of material products, (U ms of the tools and instru ments employed, and of the monuments.
His experimental investigations are carried out with plain and usually home-made apparatus, the accessories being crude and rough, but the essentials thoughtfully designed so as to compass in the simplest and most perfect manner the special end in view.
The religion of Palmyra did not differ in essentials from that of the north Syrians and the Arab tribes of the eastern desert.