000 00304pam a2200121a 44500
082 _a530.9
_bN219 V.3
100 _aGershenson, Daniel E.
245 1 _aTHE NATURAL PHILOSOPHER
260 _a
_bBlaisdell Publishing Company
_c1964
700 _aGreenberg, Daniel A.
964 _gCIRC
997 _a70725 C
999 _c412856
_d412856