Customs inspector at Abbéville and a prolific writer on diverse subjects, Boucher de Perthes found extensive deposits of flint implements in association with the bones of mammoths and other fossil animals. His work presented the first convincing proof that man had been a contemporary of the mammoth. Boucher de Perthes issued a portion of the first volume of this work in Paris, 1846, as De l’industrie primitive ou des arts à leur origine. Partly because he was an amateur not formally trained in science, Boucher de Perthes' discoveries did not generally begin to be accepted by the scientific establishment until 1859-1860. Digital facsimile from the Internet Archive at this link.