MaJichcsicr Memoirs, ]^ol. xiiv. (1900), No. 1. i i 



possess tlic propcrt}', like ice, of contracting" on fusion, then 

 it w(Mil(l float on its fluid, or, like ice, would be slippery* 

 when near its mcltinij^ temperature, if rubbed by an even 

 less fusible substance. 



It has been known for many )-ears that water enclosed 

 in capillar)- tubes must be cooled considerably below o'C. 

 before it freezes, also that in polar regions rain or mist can 



1-08 

 I -07 

 l»06 

 1-05 

 l'04 

 l«03 

 I-02 

 l«OI_ 

 1-00 



Fig. 2 



TEMPERATURES 



I2OO IaOO l600 '800 llOOO '1200 ^1400 



often exist in an atmosphere mucli colder than oQ. without 

 being converted into ice or snow, provided that the globules 

 of rain or mist are sufficiently small. Clerk Maxwell also 

 mentions seeing a rainbow in winter on a sheet of ice, due 

 evidently to water globules lying on the ice. To my mind 

 this phenomenon is due to the compressive action of the 



* Professor Osborne Reynolds on "The Slipperiness of Ice." — Man- 

 chester Memoirs, Vol. xliii., 1899. No. 5. 



