Robert Chambers (publisher, born 1802) book Vestiges of the Natural History of Creation
Source: Vestiges of the Natural History of Creation (1844), p. 55
Context: When we hear of carbon beginning to appear in the ascending series of rocks, we are unavoidably led to consider it as marking a time of some importance in the earth's history, a new era of natural conditions, one in which organic life has probably played a part.