Early Diary of John Adams, volume 1

17 Sunday.

19 Tuesday.

18 Monday. JA 18 Monday. Adams, John
18 Monday.

At Colledge, a warm morning, at 11 ’Clock read Theses on this question, (viz) antliarum et siphonum phaenomina solvuntur ex gravitate aeris.1

45 1.

“The phenomena of pumps and siphons are explained by the weight of air.”

The theses were outlines prepared earlier by tutors or sophisters, generally of single-page length, listing points relevant to the question posed and thus providing material for class discussion. Collections of theses on various questions might be kept by a tutor for the use of succeeding classes or passed down by students. The question might be one which had been disputed at an earlier commencement or be disputed at a future one; for an example see entry of 26 June, below, and note there.