5j4 On the supposed Tides in the 



A. M. I placed a stick perpendicularly in the water ; at halt' 

 past nine P. M. the water had risen five inches ; at eight the 

 next morning it had fallen seven inches ; at eight of the 

 same evening it had risen eight inches. During this period 

 the wind was in the same direction, blowing gently against 

 the flow of the tide." — page 18. 



Extract from Schoolcraffs narrative of the expedition un- 

 der Gov. Cass in 1 820. 



*' The junction of this river [Fox,] with Green Bay, affords 

 one of the most favorable positions for witnessing a phenom- 

 enon, which has attracted the attention of travellers from 

 the earliest times, without, however, having, as yet, elicited 

 any very satisfactory explication of an apparently reversed 

 order of nature. I allude to the appearances of a regular 

 tide at this place, but in so doing it is more with the view 

 of presenting an outline of those facts, which have been 

 observed by others, than of entering into any disquisition on 

 the subject myself 



"In the year 1689, the Baron La Hontan, on reaching 

 Green Bay, remarks, that where the Fox river is discharged 

 into the Bay, he observed the water of the lake swell three 

 feet high, in the space of twenty-four hours, and decrease as 

 much in the same length of time. He also noticed a con- 

 trariety, and conflict of currents in the narrow strait which 

 connects Lakes Huron and Michigan which" he says, " are 

 so strong, that they sometimes suck in the fishing nets, al- 

 though they are two or three leagues off". In some seasons, 

 it so falls out, that the currents run three days eastward — two 

 days to the west — one to the south — and four to the noth- 

 ward ; sometimes more and sometimes less. The cause of 

 this diversity of currents could never be fathomed, for in a 

 calm, they will run in the space of one day, to all points of 

 the compass, without any limitation of time, so that the de- 

 cision of this matter must be left to the disciples of Coper- 

 nicus."* 



"In 1721, Charlevoix remarks similar appearances, but 

 treats the subject with unusual brevity, evidently, from the 

 difficulties which occurred to him, in giving any satisfactory 

 explanation. He supposes Lakes Huron and Michigan to 

 be alternately discharged into each other through the strait 



* La Hontan's voyages to Canada. 



