TE.MPEKATURE->IEASUHEME\TS IN CLEAR LAKE. 47 



sioii of data for estimating how long ago the glacial period 

 closed. Lake Utopia has, as I have said, other features 

 of scientific interest, and I can imagine no more attractive 

 problem than an exhaustive investigation of its hydro- 

 graph}', physiography and natural history. 



New Brunswick thus possesses tw^o reversible river 

 phenomena — a fall at St. John and a lake mlet-outlet 

 at Lake Utopia. The presence of these striking grassy 

 points explains the significance of the name given by the 

 Passamaquoddies to the lake, about which I had pre- 

 viously to my visit last summer been mucli puzzled. They 

 call it Mes-ke-qua-gum wdiich means "lake with grass (or 

 bulrushes) around it," no doubt referring to this place ; 

 the name is altogether inappropriate elsewhere about it. 

 Its English name was given by Governor Carleton when 

 he found that the farms assigned to some of the Loyalists 

 were under its waters — they were truly Utopian so far 

 as any use to their owners was concerned. 



3. Upon Temperature-Measurements with the Ther.aiopiione 

 IN Clear Lake, Lepreau. 



(Read December 1, 1896.) 



Clear Lake, Lepreau, is a gem in itself and a joy to 

 the naturalist and physiographer. It lies at the west of 

 St. John County, is about a third of a mile long and half 

 as broad, of a shape shown in the accompanying map, 

 and empties into Little Dipper Harbor. It occupies the 

 upper end of a westerly-sloping trough formed between 

 conglomerate rocks of Devonian age standing* at high 

 angle, and appears to be held in place hj a glacial dam. 

 Its level is very uniform, summer and winter, and its 

 outlet is said to be constantly running, though it has no 

 visible inlet. Its water is clear and its shores very clean, 



