In the semi-final round in singles of the fall tennis tournament yesterday, A. Sweetser '11 defeated C. S. Cutting '12, 6-2, 6-1, 2-6, 6-4, and W. B. Fraser-Campbell '11 defeated E. H. Whitney '14, 3-6, 5-7, 6-3, 6-2, 7-5.

In the first two sets of the Sweetser-Cutting match, Cutting frequently ran up to the net, where Sweetser passed him with well executed shots along the side-lines and won comparatively easily. In the third set, Cutting changed his tactics and both men played a back court game, Cutting winning the set at 6-2. The fourth set, the closest of the match, was finally won by Sweetser at 6-4, giving him the match.

The Fraser-Campbell-Whitney match was more closely contested. Whitney won the first set easily, Fraser-Campbell driving a good many balls outside and in to the net. In the second set Fraser-Campbell braced, and at one time was leading 4 to 1, but Whitney by steadier playing was able to pull up and finally win the set at 7-5. In the next two sets, Fraser-Campbell's service proved very effective and he scored several aces. His strokes were also working well and frequently he passed Whitney at the net, although the latter made several brilliant places. In the fifth set, each man won his service until the score stood at five-all. At this point Fraser-Campbell broke through his opponent's service, making the score 6-5 in his favor. This seemed to discourage Whitney and Fraser-Campbell won the match by taking the next game.

The final round between Sweetser and Fraser-Campbell will be played tomorrow.

The following matches in doubles will be played on Jarvis Field at 2:

Third round: E. H. Whitney '14 and E. H. Woods '14 vs. C. M. Underwood '1G. and J. M. Baker '12; F. A. Pearson '11 and C. S. Cutting '12 vs. A. Tomes '13 and Q. A. S. McKean '13.

On Jarvis Field at 3: -- Semi-final round, for the best three out of five sets: A. Sweetser '11 and W. B. Fraser-Campbell '11 vs. winner of Underwood and Baker-Whitney and Woods match; winner of the Pearson and Cutting-Tomes and McKean match vs. J. R. McLane 2L. and E. P. Pearson 2L.