In the version of the Lumberjack Song I have, the singer states that
17 degrees Centigrade is 49 degrees Fahrenheit:
Of course, this isn’t true. 17 degrees Centigrade (Celsius is actually
the preferred term now) is 63 degrees Fahrenheit, whereas 49 degrees
Fahrenheit is only 7 degrees Celsius.
Totally ruined the song for me ;)