http://www.gutenberg.org/ebooks/subject/19150.opds
2025-01-22T10:44:32Z
Books about Bubbles (sorted by popularity)
Free eBooks since 1971.
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2025-01-22T10:44:32Z
https://sendtokindle.compellingsciencefiction.com/ebooks/33370.opds
Soap-Bubbles and the Forces Which Mould Them
C. V. Boys