CONTENTS. 
Page. 
Constitution- vii 
Standing Rules of the Society- ix 
Standing Rules of the General Committee-- xii 
Rules for the Publication of the Bulletin_ xiii 
Officers elected December 18, 1886_ xiv 
Officers elected December 21, 1887- xv 
List of Members_ xvii 
List of Deceased Members_ xxviii 
Summary of Membership- xxix 
Calendar_ xxxi 
Annual Report of the Secretaries-- xxxii 
Annual Report of the Treasurer_ xxxiv 
Annual Address of the President, William Darkness_xxxix 
Bulletin of the General Meetings- 1 
Report of the Auditing Committee- 3 
Graphic methods in research, G. K. Gilbert_ 4 
Geologic age of the lowest formation of Emmon’s Laconic sys¬ 
tem, C. D. Walcott, [Title only) - 5 
Present status of mineralogy, F. W. Clarke, [Title only) _ 6 
Topography and geology of the cross timbers of Texas, R. T. 
Hill, [Title only) _ 6 
Sky glows of 1883, H. A. Hazen, [Title only) _ 6 
Topography and structure in the Bays Mountains, Tennessee, 
Bailey Willis, [Title only) _ 7 
Geographical distribution of scientific men and institutions in 
the United States, G. Brown Goode, [Title only) __ 7 
Our city shade trees, their foes and their future, C. Y. Riley, 
(Title only) __ 7 
Frequency of coincidences, Lester F. Ward_ 8 
Theory of the wind-vane, G. E. Curtis, [Title only) _ 9 
Electrometer as used in observations of atmospheric electricity, 
C. F. Marvin, [Title only) _ 9 
Development of perspective map from contour map, Bailey 
Willis, [Title only) ____1 9 
Plane table exhibited and explained, W. D. Johnson__ 9 
Relation between wind velocity and pressure, H. A. Hazen, 
[Title only) _ 10 
Mt. Rainier and its glaciers, Bailey W'illis_ 10 
What is a topographic map ? Marcus Baker_ 11 
Counting-out rhymes of children, H. C. Bolton, [Title only) _ 13 
On a device for viewing the sun by light of any desired wave 
length, William Harkness_ _ 13 
What is topography? by M. H. Doolittle, W. D. Johnson, H. 
G. Ogden, GilWt Thompson___ 14, 15 
The Muir glacier, Alaska, J. W. Chickering, [Title only) _ 15 
Economic phase of the English sparrow question, C. Hart 
Merriam, [Title only) - 16 
The quaternary deposits and the great displacement of the 
middle Atlantic slope, W J McGee, [Title only). _ ___ 16 
Visit to scene of Charleston earthquake and resulting conclu¬ 
sions, C. E. Dutton, [Title only) ___ 16 
iii 
