(1991 version)
GIF (Graphic Interchange Format):
Boron (48 kB)
Carbon (92 kB)
Nitrogen (132 kB)
Oxygen (60 kB)
Isobar diagram (93 kB)
PDF (Portable Document Format):
Boron (33 kB)
Carbon (50 kB)
Nitrogen (69 kB)
Oxygen (40 kB)
Isobar diagram (51 kB)
EPS (Encapsulated Postscript):
Boron (1.57 MB)
Carbon (1.72 MB)
Nitrogen (1.76 MB)
Oxygen (1.75 MB)
Isobar diagram (1.83 MB)
Last modified: 21 August 1997