Later the Hebrew Scriptures were written in ink or paint upon the skins of ceremonially clean animals or even birds. These were rolled upon sticks and fastened with a cord, the ends of which were sealed when security was an object. They were written in columns, and usually upon one side, only. The writing was from right to left; the upper margin was three fingers broad, the lower one four fingers; a breadth of two fingers separated the columns. The columns ran across the width of the sheet, the rolled ends of which were held vertically in the respective hands. When one column was read, another was exposed to view by unrolling it from the end in the left hand, while the former was hidden from view by rolling up the end grasped by the right band. The pen was a reed, the ink black, carried in a bottle suspended from the girdle. The Samaritan Pentateuch is very ancient, as is proved by the criticisms of Talmudic writers. A copy of it was acquired in 1616 by Pietro della Valle, one of the first discoverers of the cuneiform inscriptions. It was thus introduced to the notice of Europe. It is claimed by the Samaritans of Nablus that their copy was written by Abisha, the great-grandson of Aaron, in the thirteenth year of the settlement of the land of Canaan by the children of Israel. The copies of it brought to Europe are all written in black ink on vellum or "cotton" paper, and vary from 12mo to folio. The scroll used by the Samaritans is written in gold letters. (See Smith's "Dictionary of the Bible," vol. III, pp. 1106-1118.) Its claims to great antiquity are not admitted by scholars. The enumeration of some of the modes of writing may be interesting: The Mexican writing is in vertical columns, beginning at the bottom. The Chinese and Japanese write in vertical columns, beginning at the top and passing from left to right. The Egyptian hieroglyphics are written invertical columns or horizontal lines according to the shape and position of the tablet. It is said that with the horizontal writing the direction is indifferent, but that the figures of men and animals face the beginning of the line. With figures, the units stand on the left. The Egyptians also wrote from right to left in the hieratic and demotic and enchorial styles. The Palasgians did the same, and were followed by the Etruscans. In the demotic character, Dr. Brugsch remarks that though the general direction of the writing was usually from right to left, yet the individual letters were formed from left to right, as is evident from the unfinished ends of horizontal letters when the ink failed in the pen. In writing numbers in the hieratic and enchorial the units were placed to the left. The Arabs write from right to left, but received their numerals from India, whence they call them "Hindee," and there the arrangement of their numerals is like our own, units to the right.