Friday, March 24, 2006

Mexican Central Railroad

From: "Chris Graves"

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.

Another Mexican Railroad