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Cincinnati Sncirfif of Natural Hixtory. 



ually increased. I returned to Lindenthor June 18th, and found that the 

 locusts were still there in a small quantity but that their hum was feeble. 

 Quantities of wings and pieces of locusts could be found everywhere. 

 Upon June 21st I was there again, and they had entirely disappeared. 

 The new wood, which had their eggs deposited in them. w;i^ dying, and 

 the beech trees seemed to have been specially selected. The limit of 

 duration at this point was twenty-four (24) days. I observed the locusts 

 at Middletown, Franklin, Miamisburg, and Dayton, and could hear 

 their hum all along the C. C. C. & I. R. R. at stopping stations upon 

 the afternoon of June 4th. At Dayton I saw them in quantity, but mostly 

 on trees outside the town. I was told on Sunday, June 7th. thai they had 

 been there about a week. 



Dr. G. S. Franklin, from Chillocothe, whom I met at Dayton, told 

 me that these locusts abounded in Ross county and made their first appear 

 ance there during the last day or two in May. From Dayton I went 

 northward, noting the locusts in Clark county, and arrived at Mechanics- 

 burg, Champaign county, June <Sth. The locusts had just begun to make 

 their appearance there on that day. I staid in the north part of Madison 

 county some days after that date before the locusts made any perceptible 

 noise. The difference between their appearance here and there, being 

 about 100 miles in latitude, seems to be marked by a variation of from ten 

 days to two weeks. In fact, when I left there, June 16th, their noise 

 seemed about as loud as that which I had heard in Cincinnati June 2d 

 and near Dayton June 7th. 1 While up in the count) I made several 

 trips in the country about, and found the locusts throughout Madison 

 county, and in the eastern part of Champaign. I note in "Science" 

 June 26th, 1885, that Prof. Riley gives the distribution to "The Periodical 

 Cicada" in Ohio, as Green, Franklin. Pike, Columbiana and Miami 

 counties, and the vicinity of Toledo. 



To this list I desire to add the following : Hamilton. Butler. Mont- 

 gomery, Clark, Madison, Champaign and Ross. I trust others in this 

 society may be able to extend the district or aid in mapping it out cor- 

 rectly. 



