You are looking on one book 5 3/4"by9"216page softcover copy of "THE MECHANICS OF INHERITANCE"by Franklin W. Stahl, printed in 1969.This item is in good condition with a little bit of soiling and rubbing of the covers,all pages are clean and tight.Chapters include:heredity, the genic material, duplication of nucleic acid, mutation of DNA, organization of geneic material, recombination in higher organisms, meiosis in salamander spermatocytes, recombination in viruses, genetics, filled with illustrationsand much, much more. Thanks for Looking.A8 ***Powered by eCRATER