I will provide the answer and explanation below, since it is in a paragraph.
There are many appearances of smell in the book, mostly by Little Ann and Old Dan, but this excerpt was the first I saw:
"Little Ann came in. Her bell-like tones blended with Old Dan's, in perfect rhythm. We stood and listened to the beautiful music, the deep-throated notes of hunting hounds on the
~Where the Red Fern Grows, by Wilson Rawls, pg 149.
This is a really good book, I loved It!
Hope this helped you!