24 (Proceedings of the 



dealers in Ann Arbor, and found them free from adulterations 

 with other leaves. 



On motion, the Association adjourned. 



P. B. ROSE, Secretary. 



October 2, 1875. 



The Association was called to order at 7^ p. m., Dr. A. B. 

 Prescott, Vice-President, in the chair. 



The minutes of the previous meeting were read and ap- 

 proved. 



The following proposals for membership were receiv'ed in 

 due form and referred to the Board of Censors : Profs. C. L. 

 Ford, W. H. Pettee and J. W. Langley, of Ann Arbor ; Prof. 

 J. Taft, of Cincinnati ; C. N. B. Hall, and Mrs, B. C. Farrand. 



The Board reported favorably on the above, and each being 

 duly balloted for, they were declared elected. 



Prof. Harrington, from the committee on blanks, appointed 

 at the August meeting, reported the work completed, and the 

 necessary blanks obtained, with the exception of the warrant- 

 book. 



The report was accepted, and the committee was authorized 

 to [procure the warrant-book. 



The bill of R. A. Beal for printing blanks, $6.00, was re- 

 ceived and referred to the Board of Censors. 



Prof. Greene was here introduced, and read a paper on 

 ^'' The Removal of Obstructions under Water,' ^ of which the fol- 

 lowing is an abstract : 



The improvement of navigable waters, as a public benefit, is 

 undertaken by the United States, and is carried on under the 

 Corps of Engineers. The expenses, compared with that of the 

 removal of similar materials on land, is very great in many cases, 

 as the work is often done at a disadvantage. 



Soft materials may be removed by dredging. In very shoal 

 water, dredging may be done by hand, by means of a pole and 



