An essay towards a natural history of serpents : London :Printed for the author, sold by John Gray …,1742. http://biodiversitylibrary.org/page/38946323 
V0020918ER Above, an Indian elephant; below, an African elephant cow su Credit: Wellcome Library, London. Wellcome Images images@wellcome.ac.uk http://wellcomeimages.org Above, an Indian elephant; below, an African elephant cow suckled by its young. Coloured etching by S. Milne after Captain T. Brown and E. Marechal. By: Thomas Brownafter: S. Milne and E. MarÈchalPublished: – Copyrighted work available under Creative Commons Attribution only licence CC BY 4.0 http://creativecommons.org/licenses/by/4.0/ 
