February 11, 1971

Pratt por

Dem Natl Chmn O'Brien says major Pres contenders agreed at meeting, in interests of party unity, not to attack one another; meeting attended by O'Brien, Speaker Albert, Sen Mansfield and contenders Sens Muskie, McGovern, Humphrey, Jackson, Kennedy, Hughes, Harris; O'Brien says Bayh, who is abroad, subscribes to purpose of meeting; Natl Com officials say O'Brien called meeting because campaign appears to be opening sooner than usual and he feels it is important to try to achieve party unity, and because he fears that unless he gets commitment from main contenders to help with party fund-raising, their individual finance coms will dry up traditional sources of income for party

death toll at 51; at least 10 other persons buried in wreckage of veterans hosp and given little chance to survive; enough water has been pumped from reservoir to case stress on dam; evacuation order extended another 48 hrs, minutes before another aftershock hits city; other damage, conditions and pub reaction described; Dr C Allen of Calif Inst of Tech and other scientists comment on cause of quake and possibility of a recurrence; scene described; illus

reptdly has suffered stroke, is partially paralyzed; has been ordered to stop all activities for med reasons; por

'70 census rept covering 67 met areas with 500,000 or more people shows central cities, at whole, went to 23% black from 18% in decade; says black suburban population grew 762,000, gain of 42%; but 12.5-million whites also moved to suburbs; as result, black composition of total suburban population in '70 was 4.5%, barely unchanged from 4.2% in '60; experts believe this white growth includes virtually all 2.5-million whites who moved out of central cities in decade; at same time, 3.4-million blacks moved into central cities; 58% of whites in met areas live outside central cities, but only 16% of blacks do so; table compares natl totals from last 2 censuses; 4 big cities, Washington, Newark, Gary and Atlanta, have black Mayors as against 1 in '60