The explorer Roy Chapman Andrews along with Henry Fairfield Osborn led several expeditions to North China and Mongolia from 1922 to 1928 known as the "Central Asiatic Expeditions" setting out to try to find the earliest human remains in Asia, however Andrews and his team found many other finds, such as dinosaur bones and fossil mammals and most notably the first known dinosaur nests full of eggs. Andrews' main account of these expeditions can be found in his book The New Conquest of Central Asia.[11]