Harvard's varsity lightweight crew team sped to a three length triumph over M.I.T. Saturday, highlighting a Crimson sweep in all five lightweight races.

In winning their fourth straight Biblin Bowl, the varsity lightweights jumped to a two-length lead after 1000 meters and were never headed as they completed the mile and a quarter course in 6:05. M.I.T. finished 10 1/2 second later.

Coach Bo Anderson said he was disappointed that M.I.T. did not offer Harvard as stern a test as previously hoped. "We wanted a really hard, competitive race from M.I.T., but we were still pleased with our time," he said.

Freshman Crew Breezed

The freshman crew had an easier race than the varsity, breezing to a four and a half length win in 6:13.5. Andersen had expressed concern over the crew's previous inability to get off to a driving start, but he said that "they used the good water at the start of the race very effectively this time."

Harvard's junior varsity crew came closest to defeat. After jumping off to a one-length advantage at the race's out-set, they "just couldn't get together down the course," Andersen said.

Crab Catching

A few meters from the finish a Harvard oarsman "caught crab" dipping his oar in too quickly and throwing off the stroke cadence. The crew just barely maintained its lead to edge out M.I.T.

Two other Harvard crews, manning the third varsity and second freshman boats, won their respective races handily.

The varsity light weights are trying out a new boat for their encounter with Navy and Dartmouth this weekend.

Although Navy "will be fairly tough," said Andersen, the crew is looking ahead to races with Princeton May 4 and Cornell a week later.

Cornell nosed out Princeton last Saturday and now looms as the Crimson's chief competitor. Cornell meets M.I.T. on the Charles after the Harvard-Navy-Dartmouth race Saturday. Comparing Harvard's performance against M.I.T. with Cornell's should give some indication of the relative strength of the two crews.