. Deep borehole surveys and problems. Boring. 200 DEEP BOREHOLE SURVEYS AND PROBLEMS Anderson's Apparatus.—We have had no personal oppor- tunity of examining this method, the full details of which. Fig. 13S.—Compass and clinometer. are not accessible. However, it is known to be another application of the orientated drill-stem method, the survey. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Haddock, M. H. (Marshall Henry)

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. Deep borehole surveys and problems. Boring. 200 DEEP BOREHOLE SURVEYS AND PROBLEMS Anderson's Apparatus.—We have had no personal oppor- tunity of examining this method, the full details of which. Fig. 13S.—Compass and clinometer. are not accessible. However, it is known to be another application of the orientated drill-stem method, the survey. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Haddock, M. H. (Marshall Henry). New York, McGraw-Hill

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Keywords: ., bookcentury1900, bookcollectionb, bookpublishernewyorkmcgrawhill