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FOURTEENTH ANNUAL REPORT

OF THE

DIRECTOR

OF THE

UNITED STATES GEOLOGICAL SURVEY.

Part I.-REPORT OF DIRECTOR.

CONTENTS.

REPORT OF THE DIRECTOR.

Page

11 11 13 13 14 14 14 15 15 16 16 16 16 16 17 17 17

17

17

Letter of transmittal....
Plan of' work for the fiscal year 1892–93

Appropriations......
Plans for topography

Organization ...
Work east of the ninety-seventh meridian.

Northeastern section..

Southeastern section....
Work west of the one hundred and third meridian.

Central California
Southern California.
Colorado and Montana.
Idaho.
Texas.
Wyoming
Washington
Aspen, Colorado
Stream gauging and special map work.
Office salaries.....

Supervision and disbursement
Work west of the ninety-seventh meridian in North Dakota, Sonth

Dakota, Nebraska, Kansas, and Oklahoma..

Stream gauging and special map work
Plans for geology.

Organization
Division of Geologic Correlation
Atlantic Coast Division
Archean Division
New Jersey Division
Potomac Division..
Appalachian Division
Florida Division....
Division of Glacial Geology
Lake Superior Division.
Division of Zinc
Montana Division...
Yellowstone Park Division.
Colorado Division.....
Cascade Division
Petrographic Laboratory
California Division
Work of Mr. Ward.

17 18 19 19 21 22 22 23 23 23 24 24 25 25 25 26 26 26 27 27 27

Plan of work for the fiscal year 1892–73–Continued.
Plans for geology-Coatinued.

Office expenses.
Reserve....

Summary of allotments
Plans for paleontology
Plans for chemistry
Miscellaneous plans...

Division of Ilustrations..
Division of Mining Statistics.
Division of Engraving and Printing.
Division of Library and Exchanges.

Editorial Division ...
Organization and progress of the year's work.
Topographic work

Surveying..

Engraving
Geologic work

Organization
Geologic mapping

Reconnaissance mapping
Paleontologic work
Work in chemistry.
Hydrographic work.
Miscellaneous ..

Work on illustrations.
Work in engraving
Work in the library.

Editorial work.
Synopses of publications

Disbursements
Necrology
General work in taxonomy

Growth of classification..
Relations of sedimentary rocks.
Correlation of sedimentary formations
Relations of igneous rocks....
Summary of work on igneous rocks.
Relations of the ancient crystalline rocks....
Summary of work on Algonkian and Archean rocks

Organization
Methods of work..
Geologic nomenclature.
Structural results.
Economic results
Petrology

Areal mapping..
Relations of Pleistocene deposits ..
Nature and results of the surveys of glacial formations
Relations of land forms

Résumé
General summary of paleontologic work.

Organization
Paleozoic Division...
Mesozoic Division

Page.

28 28 28 28 30 30 30 31 31 32 32 33 33 33 36 38 38 39 40 44 45 45 47 47 48 48 49 50 60 61 65 65 69 72

83

87 99 101 101 102 103 104 107 108 110 110 113 116 121 123 123 124 125

General suinmary of paleontologic work-Continued.

Cenozoic Division....
Division of Vertebrates.
Division of Paleobotany.
Division of Fossil Insects.
Paleontologic correlation
Collections

Organization and method
Collections not yet placed in the National Museum
Collections from Paleozoic rocks
Collections from Mesozoic rocks..
Collections from Cenozoic rocks.
Collections of fossil vertebrates
Collections of fossil plants....
Collections of fossil insects..
Preparation for Columbian Exposition..

Publications....
General summary of work in terrestrial physics.

Rigidity....
Cohesion and chemic action.
Pyrometry
Piezometry
Compressibility and thermal expansion
Continuity of solid and liquid states
Igneous fusion as related to pressure
Geysers and hot springs
Isogeotherms
High pressure chemistry...
Sedimentation
Heat conduction
Electrical activity of ore bodies..

Page. 127 129 131 133 135 136 136 136 139 140 110 141 141 142 142 142 143 143 150 150 153 154 156 157 158 159 160 162 164 165

ADMINISTRATIVE REPORTS.

Report of Mr. Henry Gannett

Mr. A. H. Thompson..
Mr. G. K. Gilbert.
Mr. Arnold Hague
Mr. G. F. Becker...
Prof. T. C. Chamberlin.
Prof. N. S. Shaler
Prof. C. R. Van Hise
Mr. Bailey Willis..
Mr. W. J. McGee
Mr. S. F. Emmons
Mr. J. S. Diller.
Mr, Whitman Cross
Mr. George H. Eldridge.
Prof. B. K. Emerson.
Mr. T. Nelson Dale
Mr. C. D. Walcott
Mr. T. W. Stanton
Mr. W. H. Dall.
Mr. Lester F. Ward.
Prof. 0. C. Marsh..
Mr. F. W. Clarke ..

169 175 182 188 192 193 194 197 199 210 245 246 248 250 250 251 252 255 256 258 265 267

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