Acknowledgment.-The writers wish to ac- knowledge the active participation of many of their associates in obtaining the large amount of information from which this paper is abstracted. Summary The catalytic polymerization of isobutene at low temperatures to form a homologous series of polymers ranging to very high molecular weights ... [CONTRIBUTION FROM THE UNIVERSITY OF MISSO~RI J ... The Action of Aluminum Chloride on Aromatic Hydrocarbons. 11. The ...
