1. By years, what was the price range of raw rubber per pound in Canada since 1919 until the outbreak of the present war?
2. By years, what was the estimated cost of Buna S. (artificial rubber) in Canada since the outbreak of the present war, using as a base, (a) ethyl alcohol; (b) petroleum?
3. At the present price of raw materials, what is the estimated cost of producing ethyl alcohol from, (a) grain; (b) molasses; (c) waste sulphite liquor; (d) wood hydrolysis; (e) petroleum?
4. What is the estimated cost of producing alcohol to-day, using wheat at a price of its low for the last 25-year period as compared with producing it from molasses priced at its low for the same period?