WEAVING. 



77 



B the -surest .indications of atmospheric changes, that we cannoTdoubt 



that it is to the variety of conditions in which vapour exists in the air 



more or less nearly condensed, that these phenomena are due Hum^ 



dt descnbes the colour and form of the sun's disc at settingTn 



tropical regions, as the most infallible prognostic, and elsewhere 



ascribes the vanations 'to a particular state of the vesicular vapour 



Since the red steam [opalescent vapour] occurs only durine the critical 



ge of its partial condensation (and perhaps conversely during evapo- 



rationK it is evident that it must correspond to a critical state of 



iffused vapour in the atmosphere Every accurate observer of 



EH SiSspe^--- Ss 

 STSgSS^s-SSaSSS 



This ,s the si^est sign of a following fine day in mountainous regions] 

 .... ine m named, appearance of the moraine akv rnnfuVl^rAH in^; 

 cative of foul weather, is, I have no doubt, o.ving to such^ 

 humidity bemg present that clouds are actuaUytetg forTedT con 

 Cation in the upper regions, contrary to the'direct tendency of the 

 nsmg sun to dissipate them, which must therefore be considered 

 atmg a speedy precipitation of rain." (' Phil M > 1!? 



was single, while the warp-yarn sisL nf t i SpUn ; the weft 

 and it was observable, in^at ^ w eu ^ m nZ read3 ^ Ubled '' 



number of threads to an inch uT the Jtn -f specimens, that the 









* doubt as to the formation of 



ercdb 

 had also a loom at which the JeZles of the 

 the weaving being carried on 





orb . 







//^ u > h ^ Te - bcen r rtiaiiy described in s-rsLsr 7 



wooden j. 





SS 



he warper, having placed the bobbins of yarn in an adjacent 



