The fourth round of the annual fall singles tennis tournament will be played on Jarvis Field this afternoon. Courts will be furnished free but contestants must furnish their own balls. In case any contestant fails to show up within five minutes after the time scheduled for his match, he will lose by default.

Following are the results of third and fourth round matches played yesterday afternoon: O. C. Nash '17 defeated A. K. Marsh '20, 5-7, 6-3, 8-6; P. B. Boyden '18 defeated L. Jackson '19, 6-0, 7-5; R. C. Rand '19 defeated T. A. Lightner 2L, 6-8, 6-1, 6-3; R. Kennedy '17 defeated G. H. Smith 1G, 4-6, 6-2, 6-0; E. C. Johnson '20 defeated G. L. Howe '18, 6-2, 5-7, 6-4; J. V. Austin '18 defeated W. R. Chandler 1L, 1-6, 7-5, 6-4; M. D. Miller '18 defeated R. Hitchcock '18, 9-7, 8-6; S. P. Speer 3L defeated P. M. Schwarz '20, 6-2, 6-0; G. W. Helm '20 defeated G. L. Levy '19, 6-1, 6-0; T. B. Scott '18 defeated N. R. Cutler '19, 6-3, 6-3; S. C. Wu uC defeated R. L. Hobbs '17, 6-4, 6-2; M. G. S. Rao 2G defeated K. Chase '19, 6-1, 6-2; E. B. Benedick '18 defeated W. D. D. Morgan '18, 6-2, 0-6, 6-3; E. B. Benedict '18 defeated G. L. Wilson 2L, 6-2, 6-0; F. Demarest '19 defeated B. Parker '19, 6-1, 6-2; P. E. Stevenson '19 defeated S. Ballard '17, 6-3, 6-4.

The following matches are scheduled for today. At 2 o'clock: G. W. Helm '20 vs. G. B. Scott '18; P. B. Boyden '18 vs. R. C. Rand '19; R. Kennedy '17 vs. L. E. Green '18.

At 2.45 o'clock: H. Guild '17 vs. O. C. Nash '17, winner to play W. Rand '17 at 3.45.

At 3.45 o'clock: F. Demarest '19 vs. P. E. Stevenson '19; R. G. Richards 1G vs. J. V. Austin '18; H. G. M. Kelleher '18 vs. M. G. S. Rao 2G.