Richard R. Silbar and Sanjay Reddy, American Journal of Physics

72, 892-905 (2004).

It is worth noting that, for us, the symbols k, k_F, etc., refer to momenta,
**not** to wave numbers. Some of our correspondents have been confused
on this point.

The following typos were noted by **Bijay K. Agarwal** of Texas A&M University. We
use a Latex-style for describing mathematical expressions.

The errors Eq. (25) and in Eqs. (57-62) are only typos resulting from bad transcription of the Mathematica file to the LaTeX manuscript. The numerical value of \epsilon_0 in Eq. (29) and the masses in Table I are correct. Likewise, the fitted coefficients in Eq. (64) are correct and the concluding sentence of Section V is still valid.

Eq. (11): include a factor of c^2 in the first term on the RHS.

Eq. (25): the exponent of the term in square brackets should be 1/(\gamma - 1) .

Eq. (57): there should be a factor of 1/(\pi^2 \hbar^3) before the integral.Note that, in this section, we have set c = 1. Compare with Eqs. (10) and (13) for the electron Fermi gas case.

Eq. (58): in view of the correction in Eq. (57), it might have been more felicitous to have defined \epsilon_0 without the factor of 3 in the denominator. However, as we have emphasized, \epsilon_0 is anarbitrarydimensional constant.

Eq. (59): with \epsilon_0 defined as in Eq. (58), then there should be a factor of 3 before the integral.

Eq. (60): x_i should be written as k_F/m_n, not k_f/m_i.

Eq. (62): there should be a factor of 1/(3 \pi^2 \hbar^3) before the integral.

Undergraduate students **Irina Sagert and Matthias Hempel** of the Goethe University,
Frankfurt am Main, have also informed us of several errors, including some noted
above by Agarwal. They find:

Eqs. (25), (57), (60), (62): as Agarwal, above.

Eq. (69): the factor of \hbar^2 in the second term on the RHS should not be there. (This equation is for an energy and we forgot that k_F is a momentum, not a wave number.)

Sec. VI-A, last paragraph: the relativistic gas has p = \epsilon/3,not\epsilon = p/3.

Eq. (86): it would be more consistent with our earlier use of "energy per particle" to have written this equation with each term divided by A.

After Eq. (82): text should read "For $n = n_0$ we note that $\langle E_F \rangle = \langle E^0_F \rangle$", i.e., the factor of 3/5 should be dropped. In view of this correction, the following two changes must be made.

Eq. (87): drop the factor of 3/5 before $\langle E^0_F \rangle$.

Eq. (89): the denominator before $\langle E^0_F \rangle$ is 3, not 5.