TEXAS ACADEMY OF SCIENCE. 
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111 
S. Leverett, Geological Survey, Austin. 
C. K. MacDonald, Civil Engineer, Austin. 
L. E. Magnenat, Medical College, Galveston. 
R. A. Mathis, B. Sc., Lexington, Texas. 
C. F. Maxwell, Dublin, Texas. 
Adolf Munzenberger, El Paso, Texas. 
J. Owen, Eagle Pass, Texas. 
M. Perl, M. D., Texas Avenue, Houston. 
G. W. Pierce, B. Sc., Fellow in Physics, University of Texas, Austin. 
M. B. Porter, B. Sc., Sugar Land, Texas. 
E. F. Schmidt, M. D., 88 Travis Street, Houston. 
J. T. Smith, B. Sc., Civil Engineer, Austin. 
J. A. Singley, Giddings, Texas. 
J. A. Taff, Geological Survey, Austin. 
R. A. Thompson, B. Sc., M. A., Instructor in Engineering, University 
of Texas, Austin. 
G. H. Wooten, B. Sc., M. A., 106 West Sixt 3 r -first Street, New York, 
N. Y. 
J. S. Wooten, B. Sc., 106 West Sixty-first Street, New York, N. Y. 
L. S. Williams, Pharmacist, Giddings. 
LIST OF EXCHANGES. 
The Smithsonian Institute, Washington, D. C. 
The Bureau of Education, Washington, D. C. 
The Department of Agriculture, Washington, D. C. 
The Weather Bureau, Washington, D. C. 
The American Philosophical Society, Philadelphia, Pa. 
The Franklin Institute, Philadelphia, Pa. 
The Academy of Natural Sciences, Philadelphia, Pa. 
The University of Pennsylvania, Philadelphia, Pa. 
New York Academy of Sciences, New York, N. Y. 
The American Academy, Boston, Mass. 
The University of Virginia, Charlottesville, Va. 
Indiana Academy of Science, Brookville, Ind. 
Wisconsin Academy of Sciences, Arts, and Letters, Madison, Wis. 
Minnesota Academy of Natural Sciences, Minneapolis, Minn. 
Iowa Academy of Sciences, Ames, Iowa. 
Academy of Science, St. Louis, Mo. 
Kansas Academy of Science, Topeka, Kans. 
Colorado Scientific Society, Denver, Col. 
Colorado College Scientific Society, Colorado Springs, Colorado. 
The University of California, Berkeley, Cal. 
