CHAPTER IV 

 SNOW-MUSHROOMS AND CAHOTS 



Snow-mushrooms. 



Weather and snowfall in the Selkirk Mountains, B.C. — 

 Snowcaps on high stumps of felled trees at Glacier House 

 resemble large mushrooms — Diameter 9 feet — Weight about 

 I ton — Shape due to bending under its own weight — 

 Mode of growth — Reason of their permanence. 



On the Sparseness of the Falling Snow/lakes. 



Cahots^ French name for undulations made by sledges in 

 snow — Formed on the ice of the St. Lawrence — In the 

 streets of Montreal — None in Manitoba during midwinter 

 — Similar undulations on an ordinary rough road at 

 Coniston, Lancashire, produced by a sledge. Experi- 

 ments with a small model sledge — The undulations are 

 produced without an initial inequality — And during slow 

 and steady motion — They are due to a loose but adhesive 

 condition of the road — Other examples of transverse 

 inequalities of roads. 



On Snow-mushrooms . 



My Canadian tour was undertaken for the study 



of the forms and movements imparted by wind 



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