Criteria for optimising phylogenetic trees and the problem of determining the root of a tree David Penny OriginalPaper Pages: 95 - 116
Doublet frequencies and codon weighting in the DNA ofEscherichia coli and its phages R. A. EltonG. J. RussellJ. H. Subak-Sharpe OriginalPaper Pages: 117 - 135
Fractionation of RNA from tetrahymena by affinity chromatography on poly-u-sepharose A. RonO. HorovitzI. Sarov OriginalPaper Pages: 137 - 142
Sequence characterization of 5S ribosomal RNA from eight gram positive procaryotes Carl R. WoeseKenneth R. LuehrsenGeorge E. Fox OriginalPaper Pages: 143 - 153
Elemental abundance as a factor in the origins of mineral nutrient requirements J. H. McClendon Synthesis Pages: 175 - 195