It's interesting that Baekeland's notebook uses Celsius instead of Fahrenheit yet modern American usage even in some engineering contexts uses Fahrenheit. See,

It's interesting that Baekeland's notebook uses Celsius instead of Fahrenheit yet modern American usage even in some engineering contexts uses Fahrenheit. See, for example, https://www.metabunk.org/attachments/174413923-28247782-carbon-steel-handbook-pdf.4544/ https://www.metabunk.org/attachments/174413923-28247782-carb... where temperatures are given in Fahrenheit with Celsius in brackets afterward.