Keywords: Zhengyangqifa.png en The author was born in England and served as a Protestant Christian missionary in China This figure from his Bówù Xīnbiān reprinted in Japan shows the generation of oxygen through thermolysis of mercuric oxide 1855 Bówù Xīnbiān Benjamin Hobson 1816-1873 Custom license marker 2012 08 10 PD-old-100 Uploaded with UploadWizard Chemistry experiments |