The city of Alexandria was also world-renowned for its immense library and museum established by the Ptolemies. The museum was not a collection of curiosities, but an institution of learning where sages congregated to devote their time to the study of philosophy and science. The institution was richly endowed, and very magnificent buildings were erected for its use. The most valuable books from all parts of the world were collected here, the king buying, borrowing, or even stealing, these rare treasures, when they could not be otherwise obtained from neighboring nations; and scribes were kept constantly employed in copying these works on parchment by handwriting, as printing was then unknown, so far as can be discovered; though it is hardly safe to assert that any thing was unknown to those ancient Egyptians, for new discoveries amongst the remains of their ruined cities are continually revealing some hitherto unimagined fact regarding the knowledge and civilization of that strange and powerful nation. After copies were made of all these valuable volumes, or scrolls, the original was always kept in the Alexandrine museum and library, while the copy was graciously returned to the owners, whether individuals or nations. At length the library collected in the museum increased to four hundred thousand volumes. No more could be stored in the museum, and so a wonderful temple, called the Serapion, situated in another part of the city, was used as a depository for additional volumes. Three hundred thousand volumes were afterwards accumulated in this temple. The strange history of this Serapion must not be omitted. One of the ancient gods of the Egyptians was a deity named Serapis. He was the particular divinity of seamen. A statue of this god existed in the town of Sinope, in Asia Minor. The Ptolemy kings of Egypt were desirous of making Alexandria the most important seaport and naval station in the world, and they thought this could not be accomplished without the presence of this sacred statue of the god Serapis, as his worship would bring to their city all the seamen who made pilgrimages to the shrine of their god. The king of Sinope was unwilling to part with the statue, and refused all offers of the Egyptian king to purchase this venerated image of the deity. At length, however, a famine fell upon the land of Sinope, and the people in their distress were forced to part with their sacred idol in order to obtain corn from the Egyptians, who would furnish none without this condition. The statue of the god Serapis was accordingly brought to Alexandria, where a magnificent temple was erected to contain the idol. This temple was called the Serapion.