1. Effects of catecholamines on electrolyte transport in cortical collecting tubule

   • Yasuhiko Iino
   • Julia L. Troy
   • Barry M. Brenner

   Articles Pages: 67 - 73

2. Effects of the calcium-mediated enzymatic cross-linking of membrane proteins on cellular deformability

   • Brian D. Smith
   • P. L. La Celle
   • Laszlo Lorand

   Articles Pages: 75 - 80

3. Electrophysiology of phagocytic membranes: Induction of slow membrane hyperpolarizations in macrophages and macrophage polykaryons by intracellular calcium injection

   • Pedro M. Persechini
   • Elizabeth G. Araujo
   • Gilberto M. Oliveira-Castro

   Articles Pages: 81 - 90

4. Action of caerulein, gastrin 17, pentagastrin, and secretin on the active transport of sodium by the frog skin

   • J. R. Greenwell
   • H. S. Low

   Articles Pages: 91 - 96

5. ATP-dependent calcium transport by a Golgi-enriched membrane fraction from mouse mammary gland

   • Margaret C. Neville
   • Frank Selker
   • Christopher Watters

   Articles Pages: 97 - 105

6. ³HOH-osmotic water fluxes and ultrastructure of an epithelial syncytium

   • D. A. Brodie
   • R. B. Podesta

   Articles Pages: 107 - 114

7. Carbon dioxide or bicarbonate ions release Ca²⁺ from internal stores in crustacean myofibrillar bundles

   • T. J. Lea
   • C. C. Ashley

   Articles Pages: 115 - 125

8. Intracellular ionic activities in frog skin

   • W. Nagel
   • J. F. Garcia-Diaz
   • W. McD Armstrong

   Articles Pages: 127 - 134

9. Barriers to water flow in vasopressin-treated toad urinary bladder

   • Sherman D. Levine
   • William A. Kachadorian

   Articles Pages: 135 - 139

10. Osmosis in epithelial membranes

    • R. P. Durbin
    • Adrian Hill

    Letters to the Editor Pages: 141 - 142