Prof. Rogers of the Harvard Observatory lectured at Wellesley College last week on "Micrometers."

Edward Channing, Ph. D., lectures on the Fitz John Porter case in Sever 11 at 7.30 P. M. today.

The Harvard Historical Society now numbers twenty-one, twelve graduates and eleven undergraduates.

There will be a debate at the rooms of the Institute of 1770 tonight at 7.30. A large attendance is especially desired.

The Yale Boat Club, at a meeting Saturday night, formally ratified the rules for the race published in our yesterday's issue.

The New York Times of Sunday gives a long review of the work of the Harvard Co-operative Society, which it terms "a successful experiment."

S. Coolidge, stroke of the senior crew, may be unable to row for several days yet owing to injuries received while tumbling in the gymnasium last week.

Prof. Shaler is to direct the search soon to be made of an alleged coal mine in the town of Mansfield. The coal near the surface is slatey, but it is believed that further down there is a rich deposit.

It is calculated that the equal shares left to Harvard, Yale, Williams and Amherst by the will of the late Henry T. Morgan of New York will each amount to between $40,000 and $50,000.

The Yale rehearsals of "Faust," which is to be performed April 16, 18 and 20, are progressing favorably, and it is predicted that the production will surpass anything ever given by amateurs in New Haven.

A printer's error occurred in our statement of the rowing rules yesterday morning, by which we were made to say that accidents would be allowed for in the first two strokes. It should have read ten strokes.

With the graduation of '83, Harvard will lose all her best tennis players. Mr. J. S. Clark, who now holds the championship of the college in the singles, Messrs. Richard D. Sears and George W. Beals, who hold the double championship, and Messrs. Edward R. Butler, George S. Winslow, R. S. Codman and A. C. Denniston, who have distinguished themselves by many victories, all being members of the senior class. - [Gazette.

There was a slight blaze in College House late Saturday night, which probably originated in a barrel of rubbish in the basement. It soon filled the halls with smoke, but was extinguished by a member of '84. Another warning.

The following resolutions were adopted at the recent lacrosse convention at Harvard:

Resolved, That this association hereby express their confidence in the scheme now under the conduct of Mr. H. H. Balch of the New York Lacrosse Club to send a representative team of United States lacrosse players to England and Ireland in the spring or summer of 1884; and,

Resolved, That this convention thoroughly endorse the plan, and the colleges here represented lend their hearty support to the scheme.