Sconnor
Sconnor asked Bonnie Garmus:

Hi Bonnie! I'm a retired medical technologist who 'touched' on chemistry back in the day (barely passed organic chem)...I am trying to figure out what is the molecule Elizabeth Zott put on Calvin's gravestone in chapter 15..WHAT IS IT?!! LOL> we have several theories between my spouse and I...fertilizer?? Soil?? Decomposition?? Where did you find it/ how did you figure it out? Thanks very much

Bonnie Garmus
This answer contains spoilers… (view spoiler)

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