LETTER OF TRANSMITTAL 



Office of the State Geologist. 



Lansing, Michigan, Jan. 22, 1906. 



To the Honorable, The Board of Geological Survey of the State of Michigan: 



Hon. Fred M. Warner, President. 

 Hon. W. J. McKone. 

 Hon. Patrick H. Kelley, Secretary. 

 Gentlemen: — I herewith transmit for publication as part of your report 

 a contribution to the Biological Survey of the State, authorized by Act 250 

 of the Session of 1905, a paper by Bryant Walker, Esq., of Detroit, on the 

 Terrestrial Mollusca, — the land snails and garden slugs, — of the State. 



Through the generosity of Mr. Walker in illustrations, we are able to show 

 not only the counties in which the different species have so far been found, 

 but figures by which they may be identified. 



Mr. Walker has also given references to the names by which they have 

 been known, and the different authors, who have treated them. 



Very respectfully, 



ALFRED C. LANE, 



State Geologist. 



