Mexican Central Railroad
I am hoping that someone in the blog may know who engineered the "Mexican Central Railroad," as I have a lengthy handwritten (in English) document entitled Mexican Central Railroad, Instructions for the Guidance of Surveys and Locations, 1882.
Subtitled in this document are:
Distance; Rise and Fall; Curvature; Radius of Curvature; Compensation for Curvature; Gradients; Momentum Grades; Maps; Profiles; Topography; Projecting Location.
The final page is noted: Aff; Palmer, scribe
Should anyone be able to shed some light on this document, it would be appreciated.
—G J Chris Graves, Newcastle, Cal.