Elementary and Practical Treatise on Subterraneous Surveying and the Magnetic Variation of the Needle by Thomas Fenwick; Also The Method of Conducting Subterraneous Surveys Without the Use of the Magnetic Needle, and Othe Modern Improvements by Thomas Baker
Author : Thomas Fenwick
Publisher :
Page : 222 pages
File Size : 12,46 MB
Release : 1861
Category :
ISBN :