00767cam a22002531 4500 sg 45000227 DLC 20260227112746.0 770608s1945 paua b 001 0 eng sg 45000227 (OCoLC)3025379 DLC OOxM DLC premarc RE925 .C82 1945 617.75 Cowan, Alfred, 1884- Refraction of the eye, by Alfred Cowan. 2d ed., thoroughly rev., illustrated with 181 engravings and 3 colored plates. Philadelphia, Lea & Febiger [1945] 278 p. illus., diagrs. 25 cm. Bibliography: p. 264-272. Eye Accommodation and refraction. Eye Examination. 90636 90636