In spiral galaxies, open clusters are largely found in the spiral arms where gas densities are highest and so most star formation occurs, and clusters usually disperse before they have had time to travel beyond their spiral arm.
If while in a foreign country a man buy a male or female slave belonging to another of his own country; if when he return home the owner of the male or female slave recognize it: if the male or female slave be a native of the country, he shall give them back without any money.
If any one buy a male or female slave, and before a month has elapsed the benu-disease be developed, he shall return the slave to the seller, and receive the money which he had paid.