Edad

1931 — Features: Chemistry may become the important post-depression factor; Editorials - extreme naval economy; farm by-products - one dollar for ducks - no dole for us - pilotless plane of the future; Cows fed irradiated yeast give ricket-preventive milk; Space as yet unfathomed - man's report is - "no bottom"; Better engines for navy planes; Speeding rail freight - new merchandise containers carry less than carload lots; Man-made oases in American deserts; Poland becomes a maritime nation - denied use of Danzig, Poland builds her own seaport; Has forest conservation created a false alarm?; Modern coal for modern markets - coal is now washed and thoroughly cleaned; Trademarks in disguise - the secret of a good trademark is its arbitrary nature; How stable is the earth's crust?; Masterpiece of Minoan Art; Babylonian brick reliefs; a link between Hellenistic and Roman painting; Butterfly faking - a new industry - rare and costly species "manufactured" from common varieties; Stone age man's world-wide culture. Back cover boasts colour Lucky Strike advertisement featuring illustration of a sultry Jean Harlow. She is quoted as saying "It's a delight to find a celophane wrapper that opens without an ice pick." Average wear. Unmarked. Two very small tears to fore-edge of back cover. Book