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 T h e B a l d w i n O n l i n e C h i l d r e n ' s P r o j e c t Bringing Yesterday's Classics to Today's Children @mainlesson.com |
Charles R. Gibson
(1870 - 1921)
| 1917 | War Inventions and How they were Invented | Technological Science |
| 1920 | The Wonders of Scientific Discovery | Historical Science |
| 1921 | Stories of the Great Scientists | Collective Biography |
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