Here is another chapter in the inexorable tale of the fusion of Harvard and Radcliffe Colleges.

The Harvard Class of '68 and the Radcliffe Class of '68 will sponsor a Senior Dance together for the first time. In the past, each has sponsored its own dance.

Diane Balter, president of the Radcliffe class, admitted yesterday that the ladies had taken the initiative on this matter, "primarily because both Harvard and Radcliffe have had attendance problems at the dance, and we thought it would be nice to have it together."

But Robert P. Marshall Jr., third marshal of the Harvard class, cried "creeping mergerism." "This was their idea," Marshall emphasized.

Marshall did manage to temper the change somewhat. Eugene Kinasewich, assistant dean of Harvard College, had proposed that the tickets be titled "Harvard Radcliffe College Class of 1968: Senior Dance." Marshall got it changed to "Harvard and Radcliffe College Classes of 1968: Senior Dance."

The dance will be held on Tuesday, June 11, in Lowell House.