Four Young Explorers; Or, Sight-Seeing in the Tropicsby Oliver Optic Oliver Optic was a Massachusetts politician who spent some time as a House member in Congress, but he also wrote a number of works that remain popular among kids of all ages. Pages of Four Young Explorers; Or, Sight-Seeing in the Tropics : Page 1Page 2Page 3Page 4Page 5Page 6Page 7Page 8Page 9Page 10Page 11Page 12Page 13Page 14Page 15Page 16Page 17Page 18Page 19Page 20Page 21Page 22Page 23Page 24Page 25Page 26Page 27Page 28Page 29Page 30Page 31Page 32Page 33Page 34Page 35Page 36Page 37Page 38Page 39Page 40Page 41Page 42Page 43Page 44Page 45Page 46Page 47