21.   One reform has already proved a boon to foreign brokerages and asset managers.

22.   Stock losses proved a boon for bonds, however, as some investors sought the relative safety of government debt.

23.   That may prove a boon for bonds because inflation erodes the value of their principal and fixed payments.

24.   The agreement with the SEC should prove a boon to the Cotton Bowl.

25.   The animal disease, experimental allergic encephalomyelitis, has proved a boon to studying multiple sclerosis, a disease not known to occur naturally in any animals except humans.

26.   The company says the site has proven a boon to daytime workers, who use the site after hours.

27.   The call to duty is intended to spur a giant leap in technology, one that could prove a boon to industry amid the current economic slump.

28.   The drop in the value of the ruble could prove a boon for local industries that produce consumer products, from building materials to food processing, Akimov said.

29.   The new service should prove a boon to tourism in Provincetown, and to marine life.

30.   The Net also has proved a boon in finding family members for reunions.