Wikipedia page about this book: https://en.wikipedia.org/wiki/List_of_stories_within_One_Thousand_and_One_Nights

Preceded by supplement vol 3 PG#3447 and followed by supplement vol 5 PG#3449
e1001108.txt and .zip have accents, e1001107.txt and .zip do not have them

Here is the listing of titles for the entire series, which span multiple digitization efforts:

Volume 1: #3435, #51252
Volume 2: #3436, #51775
Volume 3: #3437, #52564
Volume 4: #3438, #53254
Volume 5: #3439, #54257
Volume 6: #3440, #54525
Volume 7: #3441, #54778
Volume 8: #3442, #55091
Volume 9: #3443, #55587
Volume 10: #3444, #58360
Supplement Volume 1: #3445, #59156
Supplement Volume 2: #3446, #59953
Supplement Volume 3: #3447, #60889 (part 1), #61974 (part 2)
Supplement Volume 4: #3448, #62140
Supplement Volume 5: #3449, #63266
Supplement Volume 6: #3450, #64384

Release date is 2002-09-01

This etext was scanned by JC Byers and proofread by JC Byers,
Diane Doerfler, Jeff Ferrell, Carrie R. Lorenz, and Mats
Wernersson.

HTML file produced by David Widger

"Supplemental Nights to the Book of the Thousand and One Nights — Volume 4" by Richard Francis Burton is a translation published between 1886 and 1888. This volume continues the Arabian Nights tales within Scheherazade's frame story, featuring princes, lovers, thieves, and caliphs. Stories range from the romance of Kamar al-Zaman to tales of generous Barmecides, clever sharpers, and devout seekers. Each night weaves tales within tales, blending adventure, wisdom, and wonder across a collection mixing Sunni and Shi'ite traditions into one timeless tapestry. (This is an automatically generated summary.)

Originally published: The Burton Club, 1888