In the NOTES section is a note for the week (or at least, the school-week: Monday to Friday):
Tests instead of exams this week.
The diary-entry proper for today is as follows:
Electr- icity Had Electricity exam morning, most of it quite easy. Got 44 out of 50 for Co-ordinate and Calculus. Had a trig. and algebra exam s’af, but don’t think I’ve done so well. Went to Audrey’s in evening.
The Trigonometry and Algebra Exam, which was held “[thi]s af[ternoon]”, was originally scheduled for Wednesday: