A philosophical theologian, born in Wurtemberg, professor at Jena, and afterwards at Berlin; has written on religion, the philosophy of it and sundry developments of it, in an able manner, as well as lectured on it in Edinburgh in connection with the Gifford trust, on which occasion he was bold enough to overstep the limits respected by previous lecturers between natural and revealed religion, to the inclusion of the latter within his range; born 1830.