(1991 version)
GIF (Graphic Interchange Format):
Boron (53 kB)
Carbon (115 kB)
Nitrogen (107 kB)
Isobar diagram (94 kB)
PDF (Portable Document Format):
Boron (35 kB)
Carbon (63 kB)
Nitrogen (56 kB)
Isobar diagram (56 kB)
EPS (Encapsulated Postscript):
Boron (1.58 MB)
Carbon (1.76 MB)
Nitrogen (1.46 MB)
Isobar diagram (1.58 MB)
Last modified: 21 August 1997