The fifty-six classes which are holding reunions this week have made elaborate plans for entertainment for tomorrow and Thursday. The hours and places of the various gatherings are as follows:

1855. June 22.--2.00, luncheon, 1 Follen street, Cambridge.

1860. June 23.--1.30, quinquennial dinner, Hotel Vendome, Boston. June 24.--Business meeting, Holworthy 2.

1861. June 23.--6.30, dinner, Union Club, Boston.

1862. June 24.--Headquarters, Holworthy 5.

1863. June 24.--10.00, headquarters, Holworthy 19; 11.00, business meeting.

1864. June 23--6.30, annual meeting and dinner, Young's Hotel, Boston.

1865. June 23.--7.00, meeting and dinner, Algonquin Club, Boston. June 24.--Older classes and dignitaries entertained at Phillips Brooks House.

1866. June 24.--Headquarters, Dr. Farlow's House, 24 Quincy street, Cambridge.

1867. June 23.--6.30, dinner, Young's Hotel, Boston. June 24.--Headquarters, Hollis 3.

1868. June 24.--Headquarters, Holworthy 3.

1869. June 23.--7.00, dinner, Algonquin Club, Boston. June 24.--12.00, business meeting at the headquarters, Thayer 5.

1870.--June 23.--7.00, dinner, University Club, Boston. June 24.--12.00, lunch at the headquarters, Thayer 45.

1871. June 24.--12.00, business meeting at the headquarters, Holworthy 12.

1872. June 23.--7.30, dinner, Union Club, Boston. June 24.--12.30, meeting at the headquarters, Thayer 3.