论文部分内容阅读
从帕克辛到贝克莱特19世纪中期,照相是奢侈品。摄影师必须要自己制作感光底片,所以他们还必须是化学家。帕克斯就是这样一位摄影师。
From Paksin to Beckett In the mid 1800s, photography was a luxury. Photographers have to make their own photographic film, so they must also be chemists. Parkes is such a photographer.