Jonathan is completely healed from the dog bite that he received in Krypto, stated to have been "clean through to the bone."
When the stone is revealed by Isobel (Lana), it signals to Clark deafening him. However, when Jason gives the stone to Lana nothing happens.
When at the beginning of the episode Lana says "they're both three times zones away", it can't be right, because the actual difference between Central Standard Time (Kansas time) and China Standard Time is 14 hours. However if they were already approaching China, Lana's statement would be true.
Isobel/Lana's magic functions normally in this episode despite it being established in "Spell" that she could not work magic without her spellbook.