00527nam a2200157Ia 4500 100422 1958 a g| |||1 ||eng|d A.B.U Za QD 415.A1 A Symposium on The Chemical Basis of Development / edited by William D. McElroy and Bentley Glass Baltimore the johns hopkins press 1958 xi., 934p., ill. Includes Index Embryology McElroy William D;Glass Bentley 54883 54883