The last reading stopped at: “Forget, remember!” (614.22)
This comparatively dense passage contains a great number of potential favourites. Here's one that is at least easy to visualize:
The last reading stopped at: “chlorid cup” (613.26)
The last reading stopped mid-sentance at: “ruinboon pot before” (612.21)
The last reading stopped at: “(obs of epiwo)” (611.24)