ABSTRACT

A close reading of sources in Britain, Europe, and the United States published during the early years of photography produces a timeline of developments in the processes used to make positive prints on paper. This serves to indicate the most prominent innovators in the early evolution of photographic printing and to mark the first appearance of significant modifications in the printing process, particularly the use of albumen.

中文翻译：

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盐纸印刷在1850年代的演变：已出版的食谱

摘要

在摄影的早期阶段，仔细阅读英国，欧洲和美国的资料来源，就可以得出用于在纸上进行正面印刷的工艺发展的时间表。这表明在照相印刷的早期发展中最杰出的创新者，并标志着印刷过程特别是在使用蛋白方面进行了重大修改的首次出现。