6Rules and Practice for Adjusting Watches (pt. 1)
17The Modern Clock (pt. 4)
7Rules and Practice for Adjusting Watches (pt. 2)
18The Modern Clock (pt. 5)
8Christopher and the Clockmakers (pt. 1)
19The Modern Clock (pt. 6)
9Christopher and the Clockmakers (pt. 2)
20The Modern Clock (pt. 7)
10Christopher and the Clockmakers (pt. 3)
21The Borghesi Astronomical Clock in the Museum of History and Technology
11Chats on Old Clocks (pt. 1)