000 00243 a2200109 4500
080 _a541.14
_bS 549 P
245 1 _aPhoto-chemistry
_cby S.E. Sheppard
260 _c1914
650 _aPhoto-Chemistry
100 1 _aSheppard, S.E.
_d
901 _a572
999 _c26651
_d26651