The Underground City or The Black Indies (Sometimes Called The Child of the Cavern)

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Overview:

Title: The Underground City or The Black Indies (Sometimes Called The Child of the Cavern)
Author: Jules Verne
Year: 2008
Publisher: Project Gutenberg
Price: $0.00
Binding: ebook
Type: Novel
Title Reference: The Underground City or The Black Indies (Sometimes Called the Child of the Cavern)
Notes:
Data from publisher website The ebook (viewed in HTML format) opens with a title screen that displays, above bibliographic data for vol. 9 in the 1911 F. Tyler Daniels ed. of Works of Jules Verne (see at ISFDB), four lines, the last small size: The Underground City or The Black Indies (Sometimes Called the Child of the Cavern)

Presumably the Gutenberg text is a transcript of that from the F. Tyler Daniels omnibus, but limited to the second of two novels in Works 9, namely The Underground City or The Black Indies. Gutenberg #1353 (see) evidently contains transcripts of the Introduction and the first of two novels.