Organogermanium oxides of varying degree of complexity have been prepared, 1, 2, 3 some of them closely analogous to the organosilicon condensation products prepared by Ki~ ping.~. The ready availability of dimethylgermanium dichloride6 suggests the preparation of dimethylgermanium oxide to determine whether it has polymeric forms and whether such forms resemble the corresponding methylpolysiloxanes or silicones. It also is of interest to ...