654 PROCEEDINGS OF THE NATIONAL MUSEUlil. vol. xsxvi. 



from the 20th to the 22cl, and reached McGregor and Prairie du Chien 

 on the 2oth. 



From Prairie dii Chien on the 26th the Wisconsin and Kickapoo 

 rivers were ascended as far as Wauzeka, where the banks of the 

 Kickapoo and the marshy land adjacent to them were thoroughly 

 examined for dragonflies, A return was made to McGregor the 

 same afternoon. Again continuing down the Mississippi, the party 

 stojjped at Muscatine, Iowa, for twenty-four hours and reached Bur- 

 lington in the same State on August 3. Here a stop was made until 

 the Gth, and again both banks of the river were thoroughly examined 

 for specimens. 



From Burlington the Mississippi was descended to Grafton, Illi- 

 nois, which was reached on the 11th. On the 12th the Illinois River 

 was ascended as far as Hardin, Illinois, and a return was made on 

 the 13th, collecting along both banks. 



On the 13th. also a run was made down the Mississippi to the month 

 of the Missouri River, Avhich Avas ascended for a few miles and back 

 again, the party reaching St. Louis on the evening of the 13th. 

 Leaving there the morning of the l-tth, a long run was made down 

 the Mississippi to Cairo, Illinois, at the mouth of the Ohio River, 

 which was reached on the 10th. 



During this entire run not a solitary dragonfly was seen except one 

 or two sj)ecimens of Llhelhihi puJclieJhi Drury flying across the 

 river. 



The Ohio was then ascended on the 20th to Paducah, Kentucky, at 

 the mouth of the Tennessee River. The next day the party started 

 up the Tennessee and reached Riverton, Alabama, on the 24th. Here 

 a stop was made till the 2Gth and considerable collecting was done. 

 We started back down the river on the 2Gth for Paducah, where the 

 trip ended on August 30. 



The Mississippi River was thus covered from St. Paul to Cairo 

 through the States of Minnesota, Wisconsin, Iowa, Missouri, and 

 Illinois, and there were included also 40 miles of the St. Croix River, 

 20 miles of the Wisconsin and Kickapoo rivers, and 40 miles of the 

 Illinois River. The Ohio River was then covered from Cairo to 

 Paducah, between the States of Illinois and Kentucky, and the Ten- 

 nessee River through the States of Kentucky and Tennessee into 

 xVlabama, making in all a distance of nearly 2,000 miles. 



With the exception of a partial duplicate series, which the author 

 was kindly allowed to retain and for which his sincere thanks are 

 tendered to the honorable Commissioner of the Bureau of Fisheries, 

 all the specimens collected are now in the U. S. National Museum and 

 admit of ready reference. 



A few notes descriptive of the general physical characteristics are 

 given under such of the localities as seem to demand them. Where 



