Taking notes is definitely required.
A couple of bugs:
Major: after you use all the items and this line is played:
“Nothing happened”, Herbert remarked, “but let's not let that stop us from continuing!”, he added.
you can no longer proceed, there are no available options.
Minor: When you click on Hathor her name is repeated twice:
Hathor, Hathor, the goddess of Beauty, her horns encircling a solar disk, stood on a pedestal featuring a star on it.