EnvironmentMicroscopic Vegetable GrowingThe Curious, Factory-Adapted Agricultural Processes of Yeast ManufactureBy Ralph Howard on November 1, 1924AdvertisementABOUT THE AUTHOR(S)Recent Articles by Ralph HowardUncle Sam's Agricultural Proving GroundsCutting and Fitting Beneath the WavesFrom Common Carp to Fanciest of Gold Fish