- Publication Series: Harper's Young People Pub. Series Record # 5812
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Note:
- "Harper's Young People Series" as commonly advertised or identified by the publisher in contemporary newspapers, and as sometimes identified by others in same
- Some works (many or all?) were serial publications in Harper's Young People: An Illustrated Weekly, which ran from November 1879 to mid-1990s
- Advertisement by the publisher "Harper & Brother's Latest Holiday Books" NY Times 1884-12-12 p5 lists three latest issues in this series under subheading XI. Harper's Young People Series "Square 16mo, cloth, $1"
- Advertisement by the publisher "Harper & Brothers, New York, Have Just Published", The Critic 1886-09-11 (Vol VI, No 141; or v6 n9) viewed at Google Books, under notice of Into Unknown Seas provides list of 24 volumes "Illustrated. Square 16mo, ornamental cloth, $1.00 per volume.", not numbered or dated That list includes: 3 in the database 2016-11-10, certainly several non-fiction, perhaps nearly all non-genre

