Yale clinched at least a tie for the Ivy League title Saturday as the Bulldogs knocked off Princeton, 19-6, at New Haven. Penn rallied to whip Columbia, and Dartmouth killed a late Cornell rally to hold on for the victory.

The Bulldogs took over sole possession of first place in the Ivy League with their eighth consecutive victory over the Tigers, the fourth team not to score a touchdown against the Eli defense this season.

Princeton grabbed a short-lived lead in the second quarter on an 18-yard field goal by Scott Morrison. He kicked one of 41 yards in the third quarter for the only other Tiger score.

Yale relied on its running game, racking up 383 yards on 74 attempts. Halfback captain Rudy Green led the charge as he rambled for 138 yards and two touchdowns.

The Tigers were within striking distance at the end of the third quarter, trailing by only 13-6. But a wild pitchout from Princeton quarterback Greg Adams to Walt Snickenberger bounced 44 yards downfield to the Tiger 16, where John Cahill fell on it for the Elis.

Two plays later, fullback Tyrell Hennings barrelled in for the score from ten yards out, and the Tigers were unable to mount a comback after that.

The Yale defense again showed why it leads the nation in fewest points allowed, 5.7 per game, as it held the Tigers to 216 yards total offense. Princeton's leading runner, Snickenberger, managed only 69 yards, well below his game average of 120.

The Lions and Quakers battled to a scoreless tie in the first half, but three second-half Penn touchdowns crushed the visitors' hopes for an upset.

Early in the third quarter, Columbia's Lou Guarneri blocked a Tim Martin punt. The drive stalled, and the Lions had to settle for Rudy Gisolfi's 37-yard field goal.

Minutes later, Quaker Fred McCormick intercepted a Jose Rios pass. Penn quarterback Marty Vaughn hit split-end Bob Bucola for 29 yards and a score, giving Penn the lead, 7-3.

Steve Kochersperger, subbing for Adolph Bellizeare, capped a 92-yard Penn drive in the final period with a 27-yard jaunt into the end zone. The final score came shortly thereafter as Bill Petuskey snatched a Columbia fumble from mid-air and galloped 37 yards for the touchdown, making the final score 21-3.

At Ithaca, Skip Cummins picked off a Cornell pass and raced 68 yards for a touchdown as the Big Green held off Cornell, 21-9.

Dartmouth led at the half, 14-3, on a Tom Snickenberger touchdown and two field goals, but the Big Red recovered a fumble on the Dartmouth ten at the start of the final period. Two plays later, Kevin Stigler threw eight yards to Eamon McEneaney, narrowing the margin to 14-9.