SYNOPSIS OF PROCEEDINGS. 211 



three inches thick, and several feet across, disposed in layers, of which 

 the bottom one, resting on the clay, extends almost to the outer edge 

 of the mound, the next a great deal smaller, and so on up to the 

 height of eight feet in the middle, in a very broad, flat, pyramid form, 

 about twenty layers of these slabs forming the whole pile. 



The aboye is the first large mound in the Upper Mississippi Valley 

 of which any considerable exploration has been made, and some dis- 

 cussion was had as to the desirability and practicability of a further 

 and more thorough exploration of it. 



Jwie JO, 1882. — Regular Meeting. 



President Preston in the chair; twelve members present, and several 

 visitors. 



Mr. Charles Barnard, of Waukon, Iowa, was elected a correspond- 

 ing member. 



The Curator reported the shipment of nine boxes of southern arch- 

 nsological relics from Capt. W. P. Hall, containing about fifty ves- 

 sels of pottery, with a few other relics. 



A paper by J. C. Arthur, on "Contributions to the Flora of Iowa, 

 No. v.," was read by title and referred to the Publication Committee. 



Prof Herbert Osborn, of Iowa Agricultural College, being present, 

 spoke at some length on the habits of T/irips, a small insect not very 

 thoroughly studied as yet, which works considerable injury to the blos- 

 soms of fruit trees. 



The President then, on behalf of several members, presented to the 

 Academy a large photograph of Mr. W. H. Pratt, the Curator, finely 

 framed, stating that it was placed upon the walls as a token of their high 

 appreciation of his faithful, earnest, and disinterested work for the in- 

 stitution. Mr. Pratt being present, made a few remarks expressive of 

 his heartfelt thanks for this generous donation and the great honor 

 conferred. 



July 28, 1882. — Regular Meeting. 



President Preston in the chair; twelve members present, and se\^ral 

 visitors. 



Donations reported from Mrs. C. C. Parry, Dr. E. H. Hazen, and 

 Mrs. Eliza Ayers. 



Dr. C. C. Parry presented a brief narrative of his recent expedition 

 to Oregon and West Columbia, speaking particularly of the pines found 

 there, and gave a description of the several species in different locali- 



