INDEX 



Page. 



Accuracy of control 11 



Adirondack survey 5 



Alidade 82 



for traversing 87 



Altitudes, measurement of, in connection with traverse 



lines 89 



with plain- table - 84 



Amount of control 11 



Amphitheaters 124 



A ueroid 80 



Apparent time 17 



Aqueous ii»i-]n'it's llll 



Arid region, erosion iu 114 



Astronomic determination of position 16 



Astronomical station, selection of 21 



transit ami zenith telescope 18 



Azimuth, correction for deviation in 30 



observations, example of record 37 



example of reduction - 39 



lor 36 



on Polaris at elongation 39 



reduction of 38 



summary of results 37 



Baldwin device for stretching tape in base line meas- 

 urement 44 



Barometric observations, reduction of 98 



tables, use of 100 



Bas< li <rel.... 120 



line, alignment of 44 



measurement 42 



example of reduction of 47 



instruments used in 43 



personnel of party 44 



reduction of 45 



i <its jui i of tape in 44 



selection of site 42 



Batteries in use 19 



Canyons, formation of 115 



in strata, alternating hard and soft 119 



I Ehronograph 19 



Chronometer, break circuit 19 



Cistern barometer ". 94 



filling of tubes 96 



method of use 95 



( lassification of work. 15 



Coast and Geodetic Survey, United States 3 



Collimation, correction for error of 30 



Colors used on original maps 130 



Comparison of time 34 



Contour interval 9 



Conventions 130 



< orrasion Ill 



Decimation 17 



Page. 



Declinations, apparent, computationof 27 



Deposition from volcanic action 110 



water 121 



the atmosphere 124 



Disintegration Ill 



Distances, computation of 72 



Diurnal aberration, correction for 31 



Douglas odometer 87 



Erosion. 110 



European maps, scales of '- 1 



Features represented 9 



Field work of astronomical determination 20 



scale of 125 



Figure adjustment 68 



Fortieth parallel survey 2 



Generalization of maps I" 7 



Geodetic coordinates . 72 



Geological and Geographical Survey of Territories — 2 



l leometrie control 1" 



Glacial deposition 122 



erosion 123 



Heliotrope, Coast Survey form 52 



Steinheil 53 



Horizontal angles, errors incident to measurementof.. 50 



torn i of record 63 



i list met ions for measurement of — 55 



order of readings GO 



location 41 



Inequality of pivots, correction for 30 



Inspection 127 



Introduction 1 



Johnson plane table 80 



Lake survey, United States 4 



Land Office plats ! 103 



sun ey-a "... 4 



Latitude determination, form of record of 23 



how determined 17 



observations 21 



list of stars for 22 



reduction of 23 



Least squares in figure adjustment 69 



Station adjustment 67 



Legends upon maps 130 



Level, corrections foi error ol .- 20 



division, measurement of 26 



Longitude determination, example of reduction. 33 



how determined 18 



Massachusetts, Borden survey of 4 



Mean time 17 



Method of adjusting transit in meridian 21 



control 12 



Micrometer screw, measurement of division of head of 24 



New Jersey State surve\ 5 



299 



