CHAPTER IV.
Lewis's Patent Vices for Holding the Glass--Cleaning and Drying the Glass--Coating--Exposure in the Camera--Developing--Fixing or Brightening--Backing up, &c. 129
Lewis's Patent Vices for Holding the Glass--Cleaning and Drying the Glass--Coating--Exposure in the Camera--Developing--Fixing or Brightening--Backing up, &c. 129