In this paper a comparison is made between the observed and predicted center-limb variation in the equivalent widths of certain Fraunhofer lines. The lines have been selected chiefly for their (1) sensitivit to temperature and/or electron pressure, (2) low strength, and (3) location in spectral regions with welldefined continua. The electron-pressure distribution of the modified All er-Pierce model is combined with the temperature distribution derived from Pierce's recent limb-darkening data, and stratification of the model is taken into account completely in predicting the center-limb behavior of the chosen lines. When the predicted equivalent widths are made to agree with those observed at the center of the disk, the intensities observed at the limb in general exceed the predicted values. The discrepancies are inter- preted as temperature and/or pressure corrections to the adopted model. On the assuml)tion that the temperature in the continuum-forming region is reliably determined from limb-darkening data, it is suggested that in the adopted model the electron pressure is too high by a factor of 2 at around T = 5200 . The influence of the velocity field on the lines having greater saturation is discussed.