76 Canadian Record of Science. 



red. The sky was not brilliant in color. The change 

 from blue-gray to white daylight was rather rapid. It 

 was a cold dawn after a frosty night, and at sunrise the 

 clouds betokened a windy sky. 



The Wind at Sunrise. 



In day light the higher cirrus clouds showed cross 

 hatched wind bars — short streak N. by W. to S. by E. — 

 long; streak W. to E. The lower cirrus, of the cotton wool 

 kind, moved slowly to the east, with a tendency that 

 might have been K E., but as they were well down toward 

 the horizon it was hard to judge their true direction. 

 These clouds were the same as already mentioned floating 

 under the arches of the aurora. The wind and surface 

 clouds (morning mist from the lakes lying up the river) 

 came from the W. or S. W. 



But now a notable thing happened. Some of this misty 

 "fluff" rising from the southern column already mentioned, 

 was caught by a south wind and moved to the N.E. by 1ST., 

 or north, quite seven or eight points back from its first 

 direction. I noted these changes of motion by the stem 

 of a sapling in front of where I sat ; it, like the similar 

 clouds to the north, began to thin or evaporate, and like 

 them did not travel far, although it moved quickly for a 

 time. Not only so, more of this fluff rising as the sun's 

 heat strengthened, drifted from the south, but rising 

 higher began to exhibit the N. by W. to S. by E. wind 

 bars, and shortly joined patches of cirrus cloud marked 

 mackerel wise, floating to E. by N. (another change of 

 .direction.) By 5.15 a.m. the sky was almost clear. At 

 5.30 a.m., mare's tails and white wisps were out again, 

 but I turned in to get warm, being nearly frozen. 



About 6 o'clock a.m., a spread of cirrus clouds overhead 

 (my view was now limited) exhibited a very windy appear- 

 ance, and changed form from time to time rapidly (now 

 and again suggesting the rippling motion of the beams of 



