Production of butylene glycol. Dr. George E. Ward turns a valve in one...
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Production of butylene glycol. Butylene glycol is recovered from corn ...
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Production of butylene glycol. Corn for which new industrial uses are ...
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Production of butylene glycol. A department scientist checks the resul...
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Production of butylene glycol. P. Burke Jacobs checks the milling of c...
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Production of butylene glycol. Pilot plant set up at the Northern Regi...
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Production of butylene glycol. Bags of corn being unloaded at the Nort...
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Production of butylene glycol. Dr. Lynferd J. Wickerham selects the ba...
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Production of butylene glycol. Dr. George E. Ward inspects two types o...
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