After Tarzan rescues Nurse Hardy and Dr Celliers in the lion pit, he cuts the ropes binding their hands behind them. But in the next scene as Hardy and the doctor stand amidst villagers their hands are still bound behind them.
When Tarzan was in the camp of the veterinarian, Dr. Cellars, among the caged wild animal patients is a caged, striped Tiger. This species of the Cat Family (Tiger), while being closely related to the Lion, is not native to the Continent of Africa; but rather to Asia.
For someone who is living in the jungle, Tarzan's hair is obviously professionally cut and styled.