140 
PHILOSOPHICAL SOCIETY OF WASHINGTON. 
Page. 
Creograpliy, List of papers on—Cont’d. 
on the changes of terrestrial level surfaces 
due to variations in distribution of 
superficial matter. R. S. Woodward. 
Reference ...ix 15 
the physical-geographical divisions of the 
southeastern portion of the United 
States and their corresponding topo¬ 
graphical types. G. Thompson. Ab¬ 
stract .ix 22 
on the position and shape of the geoid as 
dependent on local masses. R. S. 
Woodward. Reference .ix 53, 54 
the topography and geology of the Cross 
Timbers of Texas, R. T. Hill. Read 
by W J McGee. Reference .x 6 
the topography and structure in the Bays 
Mountains, Tennessee. B. Willis Ref¬ 
erence . X 7 
development of a perspective map from a 
contour map. B. Willis. Title only...-x. 9 
[exhibition of a new plane table.] W. D. 
Johnson. No abstract .x 9 
Mt. Rainier and its glaciers. B. Willis. 
Abstract .x 10 
What is a topographical map? M. Baker. 
Abstract .x 11 
What is topography? Symposium. Ab¬ 
stract . X 14 
the Muir glacier, Alaska. J. W. Ohicker- 
ing. Title only .x 15 
South Florida notes. W. H. Dali, Title 
only . X 16 
the progress of science as exemplified in 
the art of weighing and measuring. 
W. Harkness. Presidential address. In 
full . X xxxvii, 39 
the most probable value of the latitude and 
its theoretical weight from entangled 
observations occurring in the use of 
Talcott’s method. A. S. Flint. Ab¬ 
stract ... X 91 
Geoidal deformation by local masses 
vii 92, 101, ix 15, 53 
CSeology, List of papers on. (See also Seis¬ 
mology.) 
remarks on the structural geology of the 
valley of the Colorado of the West. J. 
W. Powell. Abstract. .i 48 
on certain recent geological and geograph¬ 
ical researches in Arizona and Ne¬ 
vada. G. K. Gilbert. Abstract .i 54 
on sand sculpture in the West. G. K. Gil¬ 
bert. Abstract .i 57 
descriptions of new species of fossil plants 
from Alleghany County,Virginia; with 
Page. 
Geology, List of papers on—Cont’d. 
some remarks on the rock seen'along 
the Chesapeake and Ohio railroad, 
near the White Sulphur Springs of 
Greenbrier County,West Virginia. F. 
B. Meek. In full 2 plates .i 62, ii (26) 
on the causes of the elevations and ;5ub- 
sidences of the earth’s surface. C. E. 
Dutton. Title only .i 74 
on the glacial epoch in Utah and Nevada. 
G. K. Gilbert. Abstract . i 84 
on geological time. C, E. Dutton. Title 
only .i 89 
on Mallet’s theory of the formition of 
the physical features of the earth. C, 
E, Dutton. Title only . i 90 
on the recent earthquakes in North Caro¬ 
lina. B. Alvord. Abstract .i 101 
on a cold geyser or intermittent artesian 
well in Ohio. G. K. Gilbert. Abstract, 
i 103 
on the geology of the lignite formation, 
and on a hitherto undescribed deposit 
discovered in 1834 in New York bay. 
L. D. Gale. Title only .i 106 
on the age of the Tonto sand tones. G. K. 
Gilbert. Abstract and reference .i 109 
on the glacial period. C. E. Dutton. Title 
only .ii 26 
[geological history of Lake Winnipeg.] G. 
K. Warren. Abstract .ii 27 
[elevations and depressions in Alaska.] 
W. H. Dali. No abstract .ii 27 
on the movements caused in large ice¬ 
fields by expansion and contraction, as 
illustrative of the formation of anti¬ 
clinal and synclinal axes in geological 
formations. M. C. Meigs. In full. 4 
figures .ii ,33, (22) 
on the Uintah Mountains. J.W. Powell. 
Title only .ii 34 
the glacial theory. J. Henry. Abstract..ii 35 
the causes of glacial climate. Symposium. 
Abstract .ii 43, 45 
ripple-marks. G. K. Gilbert. Abstract...ii 61 
some types of mountain building. J. W. 
Powell. Title only .ii 65 
landslips and lakelets. G.K. Gilbert. Ab¬ 
stract .ii 69 
monoclinal ridges. J. W. Powell. Ab¬ 
stract .ii 74 
the distribution of thermal springs in the 
United States. G. K, Gilbert. Title 
only ..ii 80 
[geologists versus physicists.] J. W. Pow¬ 
ell. No abstract .ii 85 
