Ball John 1872 1941 H E Hurst Appendix (1 results)

Card Covers Paperback. Condition: Very Good. No Jacket. 1st Edition. Rare. From the author of 'Survey of Egypt : Egypt in the classical geographers' and 'Contributions to the geography of Egypt': John Ball was the director of the Egyptian Survey Department. He was a scientist, engineer, astronomer and geologist: In 9 chapters: I. Introduction. II: Principle of the method. III: Construction of the scale. IV: Construction of a series of scales for various altitudes of station. V: Limits of accuracy of the method. VI: Elimination of errors of plotting due to shrinkage of paper etc. 36pp + Hurst: Surveying & Investigation of the limiting distances to which the method can be employed in practice for various altitudes of station. pp. 37 - 46, ix (Short catalog). With 3 folding plates. Owner's paper label to front with light surface abrasion, strongly bound although with the linen spine missing. Light spotting on the front. A few faint pencil underlinings but otherwise appears unread.…