1. Chemical protection against aging

   • Denham Harman

   Review Article Pages: 3 - 8

2. Homocysteine-induced convulsions in the rat: Protection by homoserine, serine, betaine, glycine and glucose

   • Herbert Sprince
   • Clarence M. Parker
   • Joseph A. Josephs Jr.

   Research Reports Pages: 9 - 13

3. The depression of spinal inhibition by morphine

   • D. R. Curtis
   • A. W. Duggan

   Research Reports Pages: 14 - 19

4. Release of adrenergic transmitter from terminal nerve plexus in artery

   • John A. Bevan
   • Gregory B. Chesher
   • Che Su

   Research Reports Pages: 20 - 26

5. A comparison of the effects of partial surgical and partial chemical (CCl₄) hepatectomy on microsomal cytochrome b₅ and P₄₅₀ and oxidative N-demethylation

   • Edward A. Barker
   • Mufit Arcasoy
   • Edward A. Smuckler

   Research Reports Pages: 27 - 34

6. Physico-chemical properties of 5-hydroxytryptamine organelles of blood platelets

   • K. H. Berneis
   • M. Da Prada
   • A. Pletscher

   Research Reports Pages: 35 - 38

7. 5-Methyl-2-phenyl-isoxazolidine-3-one and the erythropoietic system

   • K. Bucher

   Research Reports Pages: 39 - 41

8. Measurement of handwriting area to pressure ratios during psilocybin-induced hallucinations

   • Roland Fischer
   • Thomas Kappeler
   • Karen Thatcher

   Research Reports Pages: 42 - 52

9. Historical note

   • H. M. Koelbing

   OriginalPaper Pages: 53 - 56