261
Babbage, Charles
| Project Gutenberg |
263
Young, Clarence.
| Generic NL Freebook Publisher |
264
Crissey, Forrest
| Generic NL Freebook Publisher |
266
Finney, Charles G.
| Generic NL Freebook Publisher |
268
Finney, Charles G.
| Generic NL Freebook Publisher |
269
Chesterton, G. K.
| Generic NL Freebook Publisher |