1. Calculation of equilibrium distributions of chemical species in aqueous solutions by means of monotone sequences

   • Thomas J. Wolery
   • Lester J. Walters Jr.

   OriginalPaper Pages: 99 - 115

2. Some consequences of applying lognormal theory to pseudolognormal distributions

   • Richard F. Link
   • George S. Koch Jr.

   OriginalPaper Pages: 117 - 128

3. Ontogeny ofHybocrinus punctatus (Miller and Gurley), an ordovician crinoid

   • James C. Brower
   • Julia Veinus

   OriginalPaper Pages: 129 - 147

4. Quantitative taxonomy and biostratigraphy of Middle Cambrian trilobites from Montana and Wyoming

   • David Richard Schwimmer

   OriginalPaper Pages: 149 - 166

5. Error estimation in stratigraphic correlation

   • John Odell

   OriginalPaper Pages: 167 - 182

6. Geoptronics: A term proposed for optical processing of geological data

   • G. S. Srivastava

   Short Note Pages: 183 - 184

7. Reviews

   • J. E. Robinson
   • John H. Doveton
   • D. F. Merriam

   BookReview Pages: 185 - 189