from Frances Foster Books (October 13, 2000)
9780374346362 |
details & prices | 200 pages | 6.50 × 7.75 × 1.00 in. | Rec. grade levels 4-6 | 0.85 lbs | List price $17.00
About: The story of John Harrison, inventor of watches and clocks, who spent forty years working on a time-machine which could be used to accurately determine longitude at sea.