00447nam a22001457a 450000500170000000800410001702000150005804100080007308200190008110000190010024501120011926000370023130000160026870000170028420260729145015.0260729b        |||||||| |||| 00| 0 eng d  a0198571836  aeng  a591.334bBAL/M  aBalls, Michael  aMetamorphosisb: The Eighth Symposium of the British Society for Developmental Biologyc/ by Michael  Balls  aOxford:bClarendon Press,c1985.  axii, 439p.;  aBownes, Mary