15
Oct
The last words of a chemist:
10. *H* stands for Nitrogen – and that does *not* burn…
11. Oh, now I have spilt something…
12. First the acid, then the water…
The last words of a chemist:
10. *H* stands for Nitrogen – and that does *not* burn…
11. Oh, now I have spilt something…
12. First the acid, then the water…