Mounting opposition in both Cambridge and other parts of the Common th made it seem likely yesterday that Governor Volpe will veto the controversel bill to surrender part of the Common for the Sullivan office building ilts.

he bill will reach the governor's desk sometime today, after which Volpe will five days to act. Reliable sources doubt that the forces of John Briston Sullivan secure enough votes to override a gubernatorial veto.

The issue is definitely significant enough in the state to warrant use of the vetoding to Rep. John R. Sennott. There a great number of cities and towns example, Lexington and Concord) have the same problem, he pointed

As almost certain that Volpe will take action until the end of the week, how- when he will meet a group of prom- Cambridge citizens to discuss the in detail.

According to Rep. Mary Newman, chief ment of the sale, a spokesman for one e churches near the Common, a businessman from the Square, and a member one of the local civic groups (probably Cambridge Civic Association) will be ag the group. There will be no repreative from the University, though.

Further Obstacle

the governor should sign the bill, it ry unlikely that the Sullivan forces have enough votes to push it through City Council. Although reported in of the project at the Committee on hearing last month, councilors Al-E. Vellucci and John P. Lynch have tly expressed uncertainty regarding value.

Though Sennott signed the original the has opposed it rigorously. "I never ated in any way that I was not st the bill. I am required to sign bills of which I don't approve," he rked.