In recent years, archeologists have made valuable finds in various places within the area.
Douglas owned land in Chicago which the railroad would make more valuable, but his primary motivation was political.
This can be made more valuable by the inclusion of the hospital chaplain.
The Dutch guilder is also expected to be made more valuable.
Connecting the services, the argument goes, would make each vastly more valuable to all users.
They make valuable the detailed knowledge of countries' histories, which intellectuals have in great supply.
Her face was so fine in bone structure and texture, she might have been a piece of old porcelain whom age had made only more valuable.
The land would have been rural at the time, then made valuable by the sudden restriction against future growth.
A particular location is only made more valuable because more people come to live around it.
The great age of the remains makes this discovery scientifically valuable.