Studies on Oxygen-Carrying Cobalt Compunds:

XI. Oxygen-Carrying Compounds Derived From Mixtures of O-Hydoxyaldehydes. Harvey Diehl, Richard J. Brouns, George C. Harrison, and Lawrence M. Liggett pages 129-140

XII. An Attempted Synthesis of an Unsymmetric Schiff's Base of Ethylenediamine. Lawrence M. Liggett and Harvey Diehl pages 141-149

XII. Apparatus For Determining The Capacity and Rate of Oxy-genation of Solid Materials. Harvey Diehl, Clifford C. Hach, George C. Harrison, Lawrence M. Liggett, and Richard J. Brouns pages 150-164

XIV. The Design of Apparatus For the Manufacture of Oxygen Using Co-Ox and Its Derivatives. Clifford C. Hach and Harvey Diehl pages 165-176

Effect on Corn Seed Treated With Tetrachloro-Para-Benzoquinone On The Growth and Fattening Of Swine. George L. McNew pages 177-184

Growth of the Yellow Bass, Morone interrupta Gill, in Clear Lake, Iowa. William M. Lewis and Kenneth D. Carlander pages 185-196

Noxious Weed Examinations-Time Saving Methods. Duane Isely pages 197-204