PUBLISHED AS A PART OF THE ANNUAL REPORT OF THE BOARD OF STANFORD LIBRARY LANSING, MICHIGAN WYNKOOP HALLENBECK CRAWFORD CO., STATE PRINTERS 1916 BOARD OF GEOLOGICAL AND BIOLOGICAL SURVEY, 1916. EX OFFICIO: THE GOVERNOR OF THE STATE, HON. WOODBRIDGE N. FERRIS. THE SUPERINTENDENT OF PUBLIC INSTRUCTION, HON. FRED L. KEELER. THE PRESIDENT OF THE STATE BOARD OF EDUCATION, HON. THOMAS W. NADAL. DIRECTOR, R. C. ALLEN. SCIENTIFIC ADVISORS. Geologists.-Dr. L. L. Hubbard, Houghton; Prof. W. H. Hobbs, Ann Arbor; Prof. W. H. Sherzer, Ypsilanti. Botanists.—Prof. E. A. Bessey, East Lansing; Prof. F. C. Newcombe, Ann Arbor. Zoologists.-Prof. W. B. Barrows, East Lansing; Prof. J. Reighard, Ann Arbor; Dr. Bryant Walker, Detroit. LETTER OF TRANSMITTAL. To the Honorable, the Board of Geological and Biological Survey of the State of Michigan: Gov. Woodbridge N. Ferris. Hon. Fred L. Keeler. Hon. Thomas W. Nadal. Gentlemen:-I have the honor to transmit herewith an administrative report for the biennium ending June 30th, 1916, with the recommendation that it be printed and bound as Publication 22, Geological Series 18. Very respectfully, Lansing, Michigan, July 30, 1916. R. C. ALLEN, Director. |