Edgar Rice Boroughs wrote 24 Tarzan books http://en.wikipedia.org/wiki/Tarzan_(book_series).
Several free ones can be obtained from iBooks. Others are available at Project Gutenberg and Australian Project Gutenberg.
I am a big Tarzan fan. I have seen all the movies and I am slowly working my way through all the books. Funny story, many years ago I watched a Tarzan marathon on TV and the cockatiel I had at the time started mimicking the trumpeting of the elephants, the sounds the monkey's make, as well as Tarzan's call. He would walk around the house just making these sounds.
--Gijzette
__._,_.___
.
__,_._,___