| Author's List |
| title | creator | language | description | tableOfContents | contributor | subject | created |
| How Two Boys Made Their Own Electrical Apparatus Containing Complete Directions for Making All Kinds of Simple Apparatus for the Study of Elementary Electricity | St. John, Thomas M. (Thomas Matthew), 1865- | en | 2009-03-15 | ||||
| How it Works Dealing in simple language with steam, electricity, light, heat, sound, hydraulics, optics, etc., and with their applications to apparatus in common use | Williams, Archibald | en | Technology -- Juvenile literature; Science -- Juvenile literature | 2009-04-10 |