When pairing correlations in a quasi two dimensional electron system induce a
pseudogap in the single particle density of states, the specific heat must also
contain a sizeable pair contribution. The theoretically calculated specific
heat for such a system is compared to the experimental results of Loram and his
collaborators for underdoped YBa_2Cu_3O_{6+x} and La_{2-x}Sr_{x}CuO_4 samples.
The size and doping dependence of the extracted pseudogap energy scale for both
materials is comparable to the values obtained from a variety of other
experiments.Comment: 4 pages, 5 eps figure
