Harvard's outlook for the Yale hockey series, which begins Saturday, was considerably brightened last night by a 4-2 victory over the Olympic Club. The Crimson skaters have at last utilized the potential ability they have exhibited throughout the winter and with increased cooperation and improved spirit played the best game of the season.

The Olympics defeated Harvard 5-2 in their first meeting in November, but last night the Crimson stickmen controlled the contest until the last period, when Coach Stubbs gave the fourth string an opportunity to practice. The summary: HARVARD  OLYMPICS Hasler, Hovenanian, Duffey, Kirkland, l.w.  r.w., Smith, Kingsley Moseley, Holmes, Dewey, Watts, c.  c., Hilliard, Lombard Beale, Hallowell, Calloway, Lincoln, r.w.  l.w., Harris, Lombard Watts, Ware, r.d.  r.d., Savard, Martin deGive, Mittell, g.  g., Moone

Scores--First Period: Calloway (14.38); Duffey (Dewey) (16.31). Second Period: Hovenanian (Holmes) (3.59); Hallowell (11.40). Third Period: Hilliard (Savard) (14.00); Kingsley (Lombard) (15.25). Penalties--Watts (Kicking the puck); Hilliard (tripping); Lombard (holding); Savard (tripping); Watts (roughing); Andres (roughing); Dow (heard Check). Referee--Cleary and Raymond. Time--Three 20-minute periods.