25* XLlI of a very extensive series, in which he suggested still anotherformula (111), which will be considered later on. In a second communicationl), GADAMER made a cbmplete review of the previous work on cantharidin and with new experimental data concluded as follows. The constitution assigned to cantharidin by MEYER necessitates the following conditions:(a) Cantharidin must easily give cantharic acid; this is correct since MEYER ...