In return he was asked to curtail his teaching at Caltech, so a compromise was reached whereby Berkeley released him for six weeks each year, enough to teach one term at Caltech.
A cambio disto pedíronlle que limitase as súas clases en Caltech, polo que tiveron que chegar a un compromiso no que Berkeley o liberaría durante seis meses cada ano, o suficiente como para que impartise clases durante un semestre en Caltech.