| Author's List |
| title | creator | language | description | tableOfContents | contributor | subject | created |
| Soap-Bubbles and the Forces Which Mould Them | Boys, C. V. (Charles Vernon), 1855-1944 | en | 2010-08-07 | ||||
| Bubbles of the Foam | Bain, F. W. (Francis William), 1863-1940 | en | 2006-11-20 |