... Borysow

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...

On professional leave of absence from Michigan Technological University, Physics Department, Houghton, MI, USA.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...)

The density is usually expressed in units of amagat. For hydrogen it is very close to the density of the ideal gas at standard temperature and pressure, which is 2.68676 $\times 10^{19}$ cm^-3.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.