( 79 ) 
V. A Litter from Mr. Triewald, Director of 
Mechanic ks to the Ring of Sweden, and F. % SS. 
of England and Sweden, to Sir Hans Sloane, 
Day 1 . Fref. (!{. S. relating to an extraordinary In- 
fiance of the almoji infiantaneous freezing of Wa- 
ter 3 and giving an Account of Tulips, and fitch 
bulbous Plants, flowering much fooner when their 
[ Bulbs are placed upon Dottles filled with Water, as 
in Tab* 11* than when planted in the Ground. 
MoJ honoured SIR , 
I H A V E at prefent to communicate to you a fome- 
what ftrange Accident, which produced as unexpect- 
ed a Phenomenon. The Ijthof December lafl: coming 
into the Hall, where my apparatus is placed, in the 
Palace of the Nobility at Stockholm, the Weather being 
very cold, I feared that the Glafs for {hewing the 
Experiment with the Cartejian Devils (or thofe 
glafs Figures in Water, w T hich by the Preflure of 
the Air oh the Surface of the Water, are made to 
change their Places, and fink to the Bottom of the 
Glafs) would be in Danger, if the Water ftiould freeze 
in the fame. I took it down from the Shelf, and u r as 
weli pleafed to fee the Water in a fluid State ; but be- 
fore I would empty the Glafs, as fome Friends that 
were prefent had not feen that Experiment, I placed my 
Hand on the Bladder tied on the Top of this Cylindri- 
cal Glafs, which was of a pretty large Size, fixteen 
L Inches 
