00375nam a22001097a 4500008004100000040005500041080001400096245006600110260005900176300001000235650002000245230421b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a5(73)bJ6  aProceeding of the academy of natural science of Philadelphia   aPhiladelphia: bThe Academy of Natural Science, c1956  a278p.  aNatural science