We identify 45 QSO candidates over a total area of 0.53 square degree in two fields at high Galactic latitudes. These candidates reached B ~ 21.5 for field Lynx.3 in SA 28 and B ~ 22 for field SA 68.2 and were selected from a subset of objects in catalogs generated from multicolor photometry (UBV) of deep Kitt Peak 4-m plates with limits of B ~ 24. This subset consists of all objects which appeared stellarlike in size but which did not have UBV colors of common Galactic stars. Besides several

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... obable high-redshift (z > 3) QSOs, this study yields faint QSO counts consistent with those from other surveys and thus provides further support to models that include mainly luminosity evolution of QSOs.