The inner tube is then emptied, care being taken to leave a few small ice crystals to serve as centres of congelation for the subsequent experiment, thus avoiding supercooling of the solution.
"The Mechanism of Life"
Stéphane Leduc
This maximum reading is the true point of congelation.
"The Mechanism of Life"
Stéphane Leduc
A contrary operation, as is now well known, takes place during the congelation of water, and heat is evolved.
"A General History and Collection of Voyages and Travels, Volume 16"
Robert Kerr