From standing next to Adolf Hitler at a construction site, to cornering a bear in a Army Post Exchange in Maine, to flying through thunderstorms in a small airplane while study freezing ice nuclei, Gerhard Langer has always had an uncanny knack for finding adventure. His memoirs describe 90 years of adventure-first as a Jewish "Mischling" (person of mixed racial status) in Nazi Germany, and then as a cowboy, scientist, husband and father, and avid hiker in the US. This straightforward and captivating life story paints a detailed picture of the struggle of surviving and thriving during the...