Taupenot, M., his Collodio-albumen process, 190. Test-paper, use of, 205. Toning bath for positives on paper, 155. Weights and Measures, 210. * * * * * CORRECTIONS. [Transcriber Note: Corrections have been applied to text.] On Page 61 and 16th line from the top, for "Iodide of Silver," read _Iodide of Potassium_. On Page 167 and 2nd line, for "32 ounces," read 64 _ounces_. * * * * * Transcriber Note Minor typos may have been corrected. Images were moved so as to prevent splitting paragraphs. All images were derived from materials made available on The Internet Archive and are placed in the Public Domain. End of the Project Gutenberg EBook of A Practical Manual of the Collodion Process, Giving in Detail a Method For Producing Positive and Negative Pictures on Glass and Paper., by Samuel Dwight Humphrey