19th-century-style engraving of a Caucasian chemist in formalwear, looking away. Black and white portrait. 版雕 人 僅一男人 19 世紀的科學家
None 工作 醫學研究 混合 Hand holding measuring beaker with blue liquid inside, close-up, part of, low angle view
Portrait of British physicist Michael Faraday, a 19th-century chemist, sitting in formalwear, looking away. 物理學家 版雕 人 「傑出的物理學家」