This volume contains information on the nucleotide composition of bacterial DNA. Eukaryotic protists, etc.; Nearest neighbour frequencies in DNA; repeated and unique sequences in eukaryotes; nucleic acid sequences in bacteriophage, chloroplasts, mitochondria, kinetoplasts, satellites and TRNA. Information on the physical properties of RNA, atomic coordinates of DNA-DNA. Also included in this volume is information on enzymes involved in nucleic acid function.