CALIFORNIA INSTITUTE OF TECHNOLOGY PASADENA WILLIAM G. KERCKHOFF LABORATORIES OF THE BIOLOGICAL SCIENCES J mdm ae bs belive Ay J te Lact ert uh re C on 4 (en foe alg . ref bo tek On te beret te ole faz, PR ge gm Be) me ey a, +t Konehe, os) He post <€: fe AX @ | (Ala q5 “4 DA oe on f. omy. Let hts AyG Aes ck ot Ad Aa Fy dr C4. SE pu | fc. bo Se "~_ ” [Ke uphh gf We df ~) bp d bo W 2.« i Charan ena te 4 Abr fs “f ‘ ee wes | oo i> . 8) eh.