Preservation programs have been underway by a number of organizations.
It became the model on which most other graduate historic preservation programs were created.
Florida, for example, announced last week that it had bought one million acres since 1990 as part of its Preservation 2000 program.
Excluding state and Federal sources, an estimated $335 million will be available for preservation programs.
Recent contributions are helping to address specific needs and promote the development of preservation programs.
An urgent preservation program is being called for by paleontologists.
Mr. Jones said last week that the land was beyond the reach of preservation programs.
At the same time, the Modern stepped up its preservation program after establishing a fund for that purpose in 1980.
Jakovlje palace is not involved in any cultural preservation program.
Manahawkin Airport closed in 1992, long before the state started its preservation program.