INDEX. 



227 



Homotaxis, 152 

 IMPRESSIONS of fossils, 131 



LABELS, 121 

 Level and staff, 68 

 Level-book, 71, 79 

 Levelling, 64 



, by aneroid barometer, 64 



, by level, 67 



, by theodolite, 74 



Lines of boundary, 13 



of out-crop, 13 



Lithology, 87 

 Loam, 90 



Lodes, mapping of, 214 

 Lustre, 93 



MAGNETIC variation, 7 

 Maps, 5 



, contour, 6 



Mapping drifts, 35 



eruptive rocks, 213 



fault, 207 



, geological, 5 



older rocks, 202 



example of, 203 



Marl, 90 

 Marl-slate, 90 

 Memoranda, 28 

 Metals, 114 



Metamorphic rocks, 120 

 Microscope, 115 



NAMING of fossils, 145 

 Nomenclature, 145 

 Notes of sections, 53, 206 



ORES of the metals, 114 



PAL.EONTOLOGICAL evidence, 

 practical bearing of, 154 



, value 



of, 150 



Palaeontology, 122 



Pick, 10 



Pipes, 56 



Plotting from angles, 81 



from heights, 74 



Pocket compass, 7 



Preservation of fossils, 144 



Prismatic compass, 8 



Propositions, general, 14 

 Protractor, 9 

 Pudding-stone, 90 



REACTIONS in the wet way, 97 

 Reference, books of, 117, 146 

 Review of Animal Kingdom, 12G 

 Ripple-mark, 90 

 River-alluvium, mapping of, 23, 



37 

 Rocks, determination of, 91 



-, table of tests for, 100 



-, eruptive, 213 



-, metamorphic, 120 



-, older, survey of, 202 



SAND, 89 

 Sandstone, 90 

 Scales, 12 



Sections, exposed, 52 

 , geological, 38 



, horizontal, 61 



, notes of, 53 



, vertical, 211 



Shale, 89 



Slate, 89 



Slickenside, 58, 119 



Soils, 223 



Species, characteristic, 152 



Specific gravity, 96 



Specimens, 91, 121 



Spud, 10 



Springs, theory of, 221 



Streak, 96 



Streams and springs, 220 



Strike, 39 



Structure, 92 



Supply of water, 218 



Symbols, 32 



of Geol. Survey, 33 



TESTS, table of, for determination 



of Rocks and Minerals, 100 

 Texture, 92 



Theodolite, levelling by, 74 

 Tracing boundaries, 13 

 Traversing, modes of, 30 



VEINS, mapping of, 214 

 Vertical section, 211 



WATER-SUPPLY, 218 

 Wells, 221 



